Exhaust Exit Location??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

muddpile · 02-04-2006, 02:31 AM

I was just wondering where everyone has their exhaust tips coming out? Mine used to be coming out under each corner of the bumper at an angle, but the mufflers were rusted off, so I pulled the whole mess off and plan on rebuilding. I will be using flo-pro mufflers (similar to flowmasters) and the exhaust is dual 2". I was thinking of having it come out just in front of the rear wheels, kind of like an AAR Cuda used to have or a Challenger T/A, with the nice angled stainless tips, but I'm not sure if that will result in nasty interior noise. I liked how it looked before, but I want to consider all my options before I do anything. Any pictures? Thanks!

jsbgump · 02-04-2006, 02:36 AM

I have mine dumped right before the rear end

**Stocker** · 02-04-2006, 03:37 AM

Quote:

Originally Posted by jsbgump

I have mine dumped right before the rear end

Ditto that, dumped behind the mufflers. Nearly all my driving is short in-town, so the exhaust never gets hot enough to dry the water from the pipes. When they went over the axle and out the back, they rusted out quickly.

LUV2XCLR8 · 02-04-2006, 09:48 AM

In front of the rear wheels, but it's a Blazer, pic's in sig

72MARIO · 02-04-2006, 10:01 AM

Mine is in front of the wheels. Just easy to do if I could have I would bring it out behind the wheels.

Flo Pros are crappy IMO they rot out really fast. I have them on my grand prix and they are toast after 1 1/2 years. That hwy driving. I would get flow masters somthing with a thick case as well as thick baffles.

*FormerMember* · 02-04-2006, 10:35 AM

I've been thinking about a side exhaust, through the trailing arm crossmember then a cut out in the bed panel. Might have to go through the frame, too.

Figured I would tube in pipe where I cut the frame and crossmember...

Bob D · 02-04-2006, 12:17 PM

I have a short bed and there was just too little space under there for me to squeeze in the mufflers and get the pipes over the rear axle and out the back. So, I went with straight out of the headers to a H pipe, to the mufflers and then angled out from them to exit just ahead of the rear wheels. The H pipe is directly under the transmission x-member and is a little recessed into there. Everything is welded, no clamps, 2 hangers, and can easily be removed as one unit just by unbolting at the Headman ball and socket collector. Not too loud in the cab with Summit turbos.

Bob

67ChevyRedneck · 02-04-2006, 12:51 PM

Mine go straight out the back running parallel with the frame.

76bonanza · 02-04-2006, 01:06 PM

I would also like to go out in front of rear tires but with some nice tips maybe square ones or something any pics of nice tips and side exit?

Tropical Snowstorm · 02-04-2006, 02:31 PM

When I had the stroker motor in my 72, I had dumps out of the muffler in front of the axle and it was LOUD. Now that she has a stock engine, I turned the tailpipes out behind the rear wheels, kinda like the old Novas in the 60's.

71chevytruckguy · 02-04-2006, 02:32 PM

on my 69 swb i've got 2 1/4" duals runnin straight back from the headers the take a 45 degree turn outwardafter the trailing arm crossmemeber and exiting infront of the rear tires at a 45 degree angle.

ChevLoRay · 02-04-2006, 07:26 PM

When I had my exhaust system done, I had plans to lower it. So, the mufflers were installed beneath the floor, outside of the frame, and the pipes were run to dump just ahead of the rear tires.

Now that it has been lowered, and since more than 4 years have elapsed since the lowering....and more than 5 years since the exhaust system (Flowmaster 40-series), I'm thinking of re-doing the system with an X-Pipe and placing the mufflers after the cab with the tail pipes extending to just below the rear corners of the bed, tucked in behind the rear bumper but just peeking out a little. Saw a '72 SWB, waaaaay back in a '99 issue of Custom Classic Trucks that was set up for the Texas Motor Speedway as a pace (?!) truck. Anyway, that's how they set up their tail pipes and I liked the way it looked. Besides, it's a little louder now that I am older....something you young un's have forward to looking to enjoy. I'm almost grown, though, so Flowmasters will still be on it!

72_Chev_Truck · 02-04-2006, 08:05 PM

I just did my exhaust, they exit in front of the rear wheels, just put all new from the engine back. headers, 2.5 inch pipe, cutouts, h-pipe and spintechs, sounds great!

Sweet72 · 02-04-2006, 08:42 PM

72_Chev_Truck,
Your exhaust is similar to my plans for the GMC. Which Spintech mufflers did you go with? I was planning to buy the Sprortsman Street XL's. As compared to flowmaster 40 series how do the spins compare in the way of sound and quality of construction?

riden2low · 02-04-2006, 08:49 PM

Quote:

Originally Posted by grendel

I've been thinking about a side exhaust, through the trailing arm crossmember then a cut out in the bed panel. Might have to go through the frame, too.

Figured I would tube in pipe where I cut the frame and crossmember...

I did what you are wanting to do. It got my exhaust tucked up inside the frame. I haven't cut my bed panel as of yet but will be here in the spring. Trucks on TV did a short on how to do it and I want to do the same. And yes you have to cut a hole in the frame. I reinforced the frame from behind but I don't haul or tow with the truck so there is no real weight to worry about.

texascowboy593 · 02-04-2006, 10:57 PM

heres mine... 2 1/2 in pipe dump right b4 the axle. 40 series flowmasters.

Robert1970C20rstbukt · 02-04-2006, 11:22 PM

I just got a new exhaust on my truck Friday, it sounds sweet! There's about half a foot of 2" coming off the ramhorns, then it goes to 2 1/4", through dual 18" glasspacks right under the cab, and dumps right in front of the trailing arms with turndowns on each side. It makes a loping sound at an idle and has a mean, loud rumble when you revv the engine.

Here's a pic, just ignore all those rust holes in the cab.

68gmcdually · 02-04-2006, 11:48 PM

I brought mine out beside the hitch. I really like the looks of it there, plus it matches my S-15 that way.

*FormerMember* · 02-05-2006, 10:54 AM

Quote:

Originally Posted by riden2low

I did what you are wanting to do. It got my exhaust tucked up inside the frame. I haven't cut my bed panel as of yet but will be here in the spring. Trucks on TV did a short on how to do it and I want to do the same. And yes you have to cut a hole in the frame. I reinforced the frame from behind but I don't haul or tow with the truck so there is no real weight to worry about.

Yep. That's what got me thinking about it. I watched Stacy do it and thought that it couldn't be that hard.

I plan to weld in tube through the frame and the crossmember. Structurally, my frame will actually be stronger. I'll plate the inside as well.

68Stepbed · 02-05-2006, 04:25 PM

Mine. dumped out the corners with Meg's tips.

72_Chev_Truck · 02-05-2006, 05:01 PM

Quote:

Originally Posted by Sweet72

72_Chev_Truck,
Your exhaust is similar to my plans for the GMC. Which Spintech mufflers did you go with? I was planning to buy the Sprortsman Street XL's. As compared to flowmaster 40 series how do the spins compare in the way of sound and quality of construction?

i went with the sportsman streets, they seem to be built alot heavier then the flowmasters. they sound unique compared to any other exhaust ive heard. it seemed like each one weighed 20 pounds. they are not labeled all that well to tell you what the input and exit is. mine came with a marker written on the input. good enough though. well built and i like them... if i had some way of recording the sound i would do it,

TP from Cntl PA · 02-05-2006, 05:43 PM

Stacks

Actually, on a diesel truck with the pump turned up it is the only option if you actually want to see anything behind you after standing on the go pedal. I have one on the driverside right behind the post for the headache rack on my stake body. Its not chrome, just black as I really don't like the look on a pickup. People sure stare when I let out the clutch and get on the go pedal at a light, then this big cloud forms behind the cab when I drive my '71

Chevrolet4x4s · 02-05-2006, 05:46 PM

I've thought that it would be cool to put the exit in the normal place no tips there or have turndowns under the truck. Then have cable or electric operated cut-outs with chrome tips exiting right in front of the doors at the secton of the front fender that is behind the wheel pening. What do y'all think about that?

Rokcrln · 02-05-2006, 07:22 PM

I will be running 2 1/2" or 3" all the way out the back to the rear corners. I built a custom tranny X-member and mouse holed the trailing arm x-member. Then from their it will go over the axel and out the back. My truck is on th elow side that is why I went thru this much trouble.

Kevin

*MisterMan* · 02-05-2006, 10:57 PM

soon, headers-glasspacks-90 degree angle down.

02-04-2006, 02:31 AM	#1
muddpile Registered User Join Date: Dec 2004 Location: Saskatchewan, Canada Posts: 1,371	Exhaust Exit Location??? I was just wondering where everyone has their exhaust tips coming out? Mine used to be coming out under each corner of the bumper at an angle, but the mufflers were rusted off, so I pulled the whole mess off and plan on rebuilding. I will be using flo-pro mufflers (similar to flowmasters) and the exhaust is dual 2". I was thinking of having it come out just in front of the rear wheels, kind of like an AAR Cuda used to have or a Challenger T/A, with the nice angled stainless tips, but I'm not sure if that will result in nasty interior noise. I liked how it looked before, but I want to consider all my options before I do anything. Any pictures? Thanks! __________________ 1964 Chevy Short Fleet: Tornado 1972 Chevy C10: Fast Orange Secondaries Wide Open

02-04-2006, 02:36 AM	#2
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Re: Exhaust Exit Location??? I have mine dumped right before the rear end __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

02-04-2006, 09:48 AM	#4
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,470	Re: Exhaust Exit Location??? In front of the rear wheels, but it's a Blazer, pic's in sig __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Big Piggy: "Goliath" 07 Kodiak C4500 Lil Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

02-04-2006, 10:01 AM	#5
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: Exhaust Exit Location??? Mine is in front of the wheels. Just easy to do if I could have I would bring it out behind the wheels. Flo Pros are crappy IMO they rot out really fast. I have them on my grand prix and they are toast after 1 1/2 years. That hwy driving. I would get flow masters somthing with a thick case as well as thick baffles. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

02-04-2006, 10:35 AM	#6
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Exhaust Exit Location??? I've been thinking about a side exhaust, through the trailing arm crossmember then a cut out in the bed panel. Might have to go through the frame, too. Figured I would tube in pipe where I cut the frame and crossmember...

02-04-2006, 12:17 PM	#7
Bob D Rolled on Paint Club Join Date: Jan 2006 Location: Windham, CT. Posts: 232	Re: Exhaust Exit Location??? I have a short bed and there was just too little space under there for me to squeeze in the mufflers and get the pipes over the rear axle and out the back. So, I went with straight out of the headers to a H pipe, to the mufflers and then angled out from them to exit just ahead of the rear wheels. The H pipe is directly under the transmission x-member and is a little recessed into there. Everything is welded, no clamps, 2 hangers, and can easily be removed as one unit just by unbolting at the Headman ball and socket collector. Not too loud in the cab with Summit turbos. Bob Attached Images

02-04-2006, 12:51 PM	#8
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Exhaust Exit Location??? Mine go straight out the back running parallel with the frame. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

02-04-2006, 01:06 PM	#9
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	Re: Exhaust Exit Location??? I would also like to go out in front of rear tires but with some nice tips maybe square ones or something any pics of nice tips and side exit? __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

02-04-2006, 02:31 PM	#10
Tropical Snowstorm Lurky lurky Join Date: Sep 2005 Location: Maryville, TN Posts: 553	Re: Exhaust Exit Location??? When I had the stroker motor in my 72, I had dumps out of the muffler in front of the axle and it was LOUD. Now that she has a stock engine, I turned the tailpipes out behind the rear wheels, kinda like the old Novas in the 60's. Attached Images __________________ Current slooooow build 1972 Cheyenne Super 1972 C10, sold thread 1970 Camaro RS Family Heirloom Last edited by Tropical Snowstorm; 02-04-2006 at 02:32 PM.

02-04-2006, 02:32 PM	#11
71chevytruckguy Registered User Join Date: Jul 2005 Location: Kernersville, NC Posts: 599	Re: Exhaust Exit Location??? on my 69 swb i've got 2 1/4" duals runnin straight back from the headers the take a 45 degree turn outwardafter the trailing arm crossmemeber and exiting infront of the rear tires at a 45 degree angle. __________________ its a work in progess. 71 c-10 lwb, in the middle of frame off restoration. 69 c-10 swb, drag truck, 406 sbc, balanced, comp 292 cam, ported, polished, gasket matched, and bowl blended pro comp 210cc heads, 2.02/1.60 ferrea valves,1.6 roller rockers, re curved hei with msd 6al box, 2-step rev limter, accel 300+ wires, ported victor jr intake, holley 750 double pumper carb, dynomax 1 5/8 headers, 4 spd munci m-20 with super case and iron midplate, mr. gasket vertigate shifter, 5.38 pro gears with full spool, 33 spline moser axles and c-clip elimators, line-loc, 5 gal fuel cell, holley blue pump. 7.807 @ 88.37mph 1.60 60FT 80 g-20 van, tow rig, cammed 305, th350, 10 bolt 88 jeep wrangler, dd, 258, ax-15 swap, 4.5" lift, 33x12.50's, lockers, 3.55's

02-04-2006, 07:26 PM	#12
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: Exhaust Exit Location??? When I had my exhaust system done, I had plans to lower it. So, the mufflers were installed beneath the floor, outside of the frame, and the pipes were run to dump just ahead of the rear tires. Now that it has been lowered, and since more than 4 years have elapsed since the lowering....and more than 5 years since the exhaust system (Flowmaster 40-series), I'm thinking of re-doing the system with an X-Pipe and placing the mufflers after the cab with the tail pipes extending to just below the rear corners of the bed, tucked in behind the rear bumper but just peeking out a little. Saw a '72 SWB, waaaaay back in a '99 issue of Custom Classic Trucks that was set up for the Texas Motor Speedway as a pace (?!) truck. Anyway, that's how they set up their tail pipes and I liked the way it looked. Besides, it's a little louder now that I am older....something you young un's have forward to looking to enjoy. I'm almost grown, though, so Flowmasters will still be on it! __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

02-04-2006, 08:05 PM	#13
72_Chev_Truck Registered User Join Date: Nov 2003 Location: Minnesota Posts: 93	Re: Exhaust Exit Location??? I just did my exhaust, they exit in front of the rear wheels, just put all new from the engine back. headers, 2.5 inch pipe, cutouts, h-pipe and spintechs, sounds great!

02-04-2006, 08:42 PM	#14
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	Re: Exhaust Exit Location??? 72_Chev_Truck, Your exhaust is similar to my plans for the GMC. Which Spintech mufflers did you go with? I was planning to buy the Sprortsman Street XL's. As compared to flowmaster 40 series how do the spins compare in the way of sound and quality of construction? __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.

02-04-2006, 10:57 PM	#16
texascowboy593 Registered User Join Date: Dec 2004 Location: Southeast Tx Posts: 1,302	Re: Exhaust Exit Location??? heres mine... 2 1/2 in pipe dump right b4 the axle. 40 series flowmasters. Attached Images __________________ "The rays of light thru the Shiner Bock bottle make me wanna turn the key and put down the throttle...and get lost down 35" - Jason Boland www.YouTube.com/user/593Films - Watch My Videos! 1977 Silverado K10 2014 Dodge Durango (Wife-mobile) 2008 Dodge Ram Lone Star Edition (Daily driver) Last edited by texascowboy593; 02-04-2006 at 10:58 PM.

02-04-2006, 11:22 PM	#17
Robert1970C20rstbukt Registered User Join Date: Jun 2004 Location: Beeville, Texas Posts: 1,943	Re: Exhaust Exit Location??? I just got a new exhaust on my truck Friday, it sounds sweet! There's about half a foot of 2" coming off the ramhorns, then it goes to 2 1/4", through dual 18" glasspacks right under the cab, and dumps right in front of the trailing arms with turndowns on each side. It makes a loping sound at an idle and has a mean, loud rumble when you revv the engine. Here's a pic, just ignore all those rust holes in the cab. Attached Images __________________ RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck Last edited by Robert1970C20rstbukt; 02-05-2006 at 05:13 PM. Reason: add pic



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02-04-2006, 11:48 PM	#18
68gmcdually Registered User Join Date: Feb 2004 Location: Fenelon Falls, ON Canada Posts: 1,455	Re: Exhaust Exit Location??? I brought mine out beside the hitch. I really like the looks of it there, plus it matches my S-15 that way. Attached Images __________________ James Bellwood 1968 930 Extend-A-Cab Dually 5.7l, 5 speed,

02-05-2006, 04:25 PM	#20
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	Re: Exhaust Exit Location??? Mine. dumped out the corners with Meg's tips. __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system Last edited by 68Stepbed; 10-04-2007 at 10:32 PM.

02-05-2006, 05:43 PM	#22
TP from Cntl PA Registered User Join Date: Apr 2003 Location: Central PA....In the Berg of Nisbet Posts: 790	Re: Exhaust Exit Location??? Stacks Actually, on a diesel truck with the pump turned up it is the only option if you actually want to see anything behind you after standing on the go pedal. I have one on the driverside right behind the post for the headache rack on my stake body. Its not chrome, just black as I really don't like the look on a pickup. People sure stare when I let out the clutch and get on the go pedal at a light, then this big cloud forms behind the cab when I drive my '71 __________________ '72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!!

02-05-2006, 05:46 PM	#23
Chevrolet4x4s Registered User Join Date: Nov 2005 Location: WV Posts: 227	Re: Exhaust Exit Location??? I've thought that it would be cool to put the exit in the normal place no tips there or have turndowns under the truck. Then have cable or electric operated cut-outs with chrome tips exiting right in front of the doors at the secton of the front fender that is behind the wheel pening. What do y'all think about that? __________________ 1993 K1500 350 5 speed 1985 K10 Silverado Vortec 406 5 speed (in body shop) "I been drivin' this '85 pickup truck Them buddies of mine call it a bucket of rust She's a little beat up but she still runs like the wind Yeah, kinda like me I been banged and bruisedBeen around the block a time or two But I'm runnin' like new goin' places I never been No, I ain't broke I'm just broken in" 1963 Dodge Townwagon(its amazng what 30 years and zero miles will do to a vehicle ) Member#20327

02-05-2006, 07:22 PM	#24
Rokcrln Senior Member Join Date: Jul 2005 Location: Winters Ca. 95694 Posts: 4,843	Re: Exhaust Exit Location??? I will be running 2 1/2" or 3" all the way out the back to the rear corners. I built a custom tranny X-member and mouse holed the trailing arm x-member. Then from their it will go over the axel and out the back. My truck is on th elow side that is why I went thru this much trouble. Kevin Attached Images

02-05-2006, 10:57 PM	#25
MisterMan Account Suspended Join Date: Jan 2006 Location: Visalia, California Posts: 286	Re: Exhaust Exit Location??? soon, headers-glasspacks-90 degree angle down.

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