[crazy longhorn]

The way it was explained to me, by a man with 45yrs in the buisness.... After the mufflers, you can cut the pipe size down & really no issues on the power. Also on the crush bent pipes, the bigger the pipe, the harder it will crush it. I saw that, working in that shop I shot for mandrel downs/ straight shot to the mufflers.....after that, your exhaust has cooled down, & it does not need the larger pipe to maintain the power? Check that with the Pontiac guys (forget the names), but they showed on the drag strip that smaller tail pipes did not hurt the times! On your average street engine, I would doubt that you will see much difference......all out race, you will want all you can have Longhorn