750 whp exhaust setup
Thanks
In about a month I will be switching to kooks duals to see how I like them.
4.25 would do it. Not going to say its more difficult to fit over the rear differential though. UMI makes a kit that gives you more clearance running exhaust over the rear diff. BMR may make one as well.
Y pipe setup will definitely make power. Lots of guys running X pipes that ditch to a Y make even more power, although that isnt surprising considering most X pipe setups are poorly designed and optimized.
Here is mine for an example:
https://ls1tech.com/forums/generatio...-ford-9-a.html
https://ls1tech.com/forums/generatio...ut-dumped.html
There is a sticky that gives you an idea of pipe diameter -vs- horsepower somewhere at the top of this board section.


