I know cat or b-pipe or end of exhaust pipe without bottlenek is better.
is it really that BAD if you have bottleneks on your exhaust system?
why you so care about bottleneks?
if you so care, how about JDM recaro seats weight?it doesn't matter cuz its recaro?
how bad is it?

thank you~*

ps. I will have nightmare tonight about bottleneks for sure

 

Remove both and gain 3-4whp that's why. It barely costs anything and if you can weld practically nothing. Why waste money on JDM Recaro's? If I'm going to spend $4,000 on a pair of brand new seats you better believe they will have a Carbon shell and on top of that if I'm spending over a $1,000 per seat you bet your *** the passenger isn't getting one unless all my friends wanna chip in for it.
That is all.

Jimmy- JDM 4-1, Carsound 94006, ITR B-pipe (still has bottlenecks ) Soon to be 'neck free!