Single Exhaust from the down pipe
I have to get a new exhaust made, the systems I have laying around have resonators that are going to develop holes in no time and mufflers that will essentially have that same problem as well.
So I've come to the point where I want something new made, I cut the down pipe right before it splits into two to go to the flange to the cats.
So I'm trying to figure out, what would be a suitable size of muffler piping all the way back in order to let the car breathe adequately. Stock is 2.25 I believe on each pipe and so he next thing up would be 2.5 as I would tend to think 2.5 would be a bit too small to run a single pipe all the way back?
2.75 I think would be getting a bit excessive but I'm asking for opinions so please share some insight, the motor is a stock m50b25.
I'm also looking at picking up a good size resonator as well any suggestions on that I've found one at 16" that would suit my application but if any of you guys have done the same and found it excessively loud please speak out.
Some extra info that may help, I plan on using a Cat and a muffler in this system as well, so nothing will really be missing from this setup except that it will be single instead of dual.
95 530i|Modifications - Work.
Last edited by ACS_DAN; 07-18-2009 at 11:03 PM.