exhaust exit?what you guys run?
 

putting my new dynomax ceramic headers on next week along w/my much anticipated delta-flow 40 series flowmasters. can't decide how i want to do the exit,out the sides;so i can hear it OR straight out the back w/ an angle cut tip.what you guys think? got any pics, or any ideas about it?

I prefer out the sides - it sounds better. Even on my truck (Ram horn manifolds, 2 into 1, 2 1/2" pipe) it sounds nice and throaty coming out the side. I think you lose too much going out the back, and it looks sorta funky, too.

I've been contemplating a smokestack set-up lately.. dual pipes coming up behind the cab in a semi-truck fashion. I think it'd be cool.. http://67-72chevytrucks.com/board/ubbhtml/wink.gif

Mine come out behind the rear wheels at 45 degree angle with 3 1/2 inch chrome tips.

As far as coming out the side; before or after the rear wheels? I'm getting ready to install the vette ramhorns myself with 2.5" pipe through chambered mufflers. I'm thinking exit in front of the rear wheels at a slight angle.

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1970 GMC K25 Custom
Chesapeake, VA
My 70 GMCor Webshots http://community.webshots.com/user/70gmc

Just got my flowmasters put on a few months ago, I have them dumpin straight down, just before the rear axle outta 3" tips, sounds great!

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SILLY BOYZ......TRUCK ARE FOR GURLZ !!

"A GIRL and her TRUCK....its a BEAUTIFUL thing..."

Instant msgr,
AOL=GMCjunkie67
MSN=GMCjunkie71
Yahoo=mooomom2

I plan to turn mine out the sides,ahead of the wheels. I just have turn downs for temporary,sounds good,but more resonance inside the truck....69 longhorn.

I Just got mine Install about 2 weeks ago. I have the same set-up as you except I went
with the Afterburners mufflers by Flowtech
My pipes come out the side but are turned
down like the Chevell with the chevell
tips. I am going back the get the H-pipe
this week(More power I am told) Oh an the sound Is the same as the Flowmasters but
about 60 dollars cheaper for the set of
mufflers. If you go with flowmaster go with
the Deltaflow 40's

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71 C10 LWB
79 Monte C

Mine exits the sides just ahead of the wheels. Had it that way 2 years so far, and have decided I don't care for it.

The sound is "lop sided" (you hear 4 cylinders louder than the other side's 4). Probably curable with an H-Pipe. On long drives the exhaust drone is tiresome, you have to yell to talk, and can hardly hear the radio. Next time I am going with an H-Pipe and behinde the rear wheel side exit.

[This message has been edited by Brad69 (edited April 11, 2002).]

An H pipe will mellow the exhaust,& even the pulses. It made a big difference in noise level with my 40s flows....it will also pick up the power in the low & mid range.....69

I have an H pipe and they turn down after the axle and do not show at all. I like the clean look and sound. Just my 2c

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Steve's 70 CST
Soon to have a BB
www.picturetrail.com/70CST

I have my muffs right under the cab, with no turn downs or anything...it sucks, ask LonghornJeff.

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

I have behind the 402 cheapy Dynomax Headers($80 ones,never had a problem no gasket leaks 4-years know)and aluminized 2 1/2" ehaust hooked to Dynomax muffler exiting in the stock rear of the wheel location.the only place it should be in my opinion.I absolutley hate seeing exh dump infront of the wheels and i hate it even more straight out the back on a truck.just a personal preference though.probably cheaper infront of wheels but probably more noisier,and as far of the side stacks there a mexican lowrider 67 down here with the semi stacks it doesnt look good,i laugh everytime i see it.but thats just me,or maybe its the mural on the hood,visor,bug cather or the 13" reversed wire wheels,or the crushed velvet interior and dingoballs?????Such a shame its a 72 Cheyenne Super SWB with a factory 402 has buckets,tilt,tach-it needs to be taken back to a truck not a g-ride,oh even has a chain steering wheel,and a beer handl shift knob-pretty cool huh,thought not!!!

I've got stock ramhorns with stainless pipes and glasspacks comming out the side just behind the rear wheels and it sounds pretty tough.

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Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84
ralleys and 31/10.5s

Angel girl: 67 Cutlass convertible
330, 3spd stick

Greener: 90 GMC Jimmy
350/auto
Chad Stephens
Orleans,NE

no name yet: 72 442 under serious construction

I have my exhaust exiting behind the back tires. I have pictures on my webpage. Links in my signature.

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1967 C-10, 383 Stroker, TH-350, 3.73 gear, NX Hitman Nitrous Kit, 1/8 Mile 8.77 @80mph on motor. 8.12 @ 84mph with 100hp nitrous shot. <A HREF="http://www.geocities.com/ryan98gt/67c10.html" TARGET=_blank>
Picture's of my Truck</A>
Burnout Video's of my Truck
Engine & Drivetrain details

I like out the side at an angle, behind the rear wheels. With a topper on and pipes straight out the back, you will pull exhaust gases in to the topper around the tailgate and hatch. Really bad if you have the side windows or top vent open on the topper.

You may never plan to put a topper on your truck but I had one on mine once and found this out.

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Woody
'69 Custom-10 Deluxe
Short Fleetside,Factory 350cid/TH400,A/C,PS,PB,Carpet
Coming soon 700R4, 350 Crate Engine, Pwr Disks...

THANKS GUYS, appreciate al the responses of what you've done on yours, it's funny but most everyone said the same as what i was figgerin'on doing.out the side on angle behind rear tire !

I can't remember who on this board has this, but it's what I'm considering. I want 2.5" pipes with 40 Flows straight out the back. But, I may want it to be more aggressive. This guy has exhaust dumps before the rear wheels. I've never heard this before, but it sounds like a cool idea. I may want loud and obnoxious, or I can mellow it out a little like when I'm going to church.


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1970 C-10 named HOSS
350/350, PS, PB, 3.07 gears
Future Motivation: 383 stroker, KB flat-top pistons, RPM intake and heads, 750cfm Edelbrock, & headers.
For pics of my truck go here: http://communities.msn.com/1970HOSS/shoebox.msnw?Page=1
Future Projects: 1969 Pontiac GTO and 1974 International Scout II

Hook 'Em from Austin, TEXAS

Hey Patrick, that's exactly what I am doing with my 72!! I thought of doing the stacks idea a couple years ago. I was gonna run it off my inline, but I will be dropping a rebuilt 350 into the beast in 1 month or so. So far I am planning on keeping the stock manifolds, running 2, 12" long bottles wit 2 " pipes, then 90 degrees up, and run up the back of the cab. I think it will accent the flatbed nicely. The only thing that would be even cooler is adding a flame thrower kit to the stacks, Talk about mean looking!!!!! Hmmmmmmm Fire is your friend!! I just may have to try that out hmmmmm

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72 C/10 LWB 2wd
250 inline 6, 3 speed column shift. Soon to have a total facelift.




[This message has been edited by dubie (edited April 12, 2002).]

IMO, this is the ONLY truck that can pul off havin stacks, and still look cool.
http://countryclassiccars.com/trucks/78rdpu3.jpg

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

IMO,I agree with Andy. The Lil Red Express trucks can pull it off, not so sure about anything other trucks

I helped put a set of stacks on a flatbed,& thought it looked decent(set inside the bed a little),the holes were cut through the floor. This was a Ford,with 351 W......had an awsome Sound!!!!!!!!.......69 longhorn.

Well, I have old corvette heads on the truck, which run to rusty pipes, which leads to a rusty muffler that has a gapping hole in it, and last but not least, the tip sticks it's nose out behind the rear wheel. I'll tell you one thing, it's does anything, BUT muffle the exhaust!!! For all intents and purposes, I should hack the muffler off, and just run a straight pipe! The neighbors hate me when I come ripping into the driveway, off work, at 6:00am!!! In a quiet neighborhood, my truck kinda sticks out!! Well, at least there's one other dude that lives across the street, that has an mid - late 80's Chev pickup, that's almost as noisy as mine. I think he waits for me to go to sleep, and get's out in that truck to rev it up some, just for good measure! A war he wants, a war he gets!! hahaha

I'll drive my truck right into his backyard, flatten his fence in the process, and rev the arsehole outta the truck, right next to his windows!!

Kidding guys, I'm not THAT big a prick!

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1970 GMC 1500, 350ci, 3 in a tree

http://members.tripod.com/~Jungleman_2/1970GMC.html

Vancouver, B.C.

reminds me i haved pissed off the neighbor my brother came over early to assisst in a motor swap,only thing left was hook exhaust to headers he begged me to start it.I said get in lets go for a test ride.Open headers on that Big Block is loud we when for a quick around the blocker,alot of me romping on it,my neighbor was in my driveway in his underwear and said wtf are you doing?,i said driving my truck,this dudes aboutr 6'8 and big boned and hes pissed i screech out "im sorry"he yells i just worked graveyard last night,i said i wont do it again,you can go back to bed now.Been careful every since.open header Sunday morning at 8 am no good idea.

I'm a firm believer in doing an open header/no hood test drive after an engine swap.

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

2.5 pipes out the rear with 3.5 x 22 inch tips with exhaust pipes running thriugh the tips stopping 4 inches shy of the end of tips giving good looks without ruining flowmaster music