So i basically had a custom "cat-back" exhaust made for my car because i found a deal on mufflers that i measured out to fill the heat shields perfectly, but due to a few stupid errors, they had to be turned 90 degrees, but my car is still noticably quieter at WOT and high RPMs and idle. the only problem is that while my car was on the lift, the exhaust guys and i noticed that my resonator that was on the car was cracked... i didnt get it switched mainly cuz i had no money, but while i rebuild my bank account, i had a few questions. between the 3" presilencers that racing beat makes, which one would be the best option for a TII FC. is the REV TII presilencer worth the extra 150 bucks? do the universal 3" ones fit? if anyone has some experience with a custom exhaust with RB presilencers, can i get some input? i forgot to measure how much room i had between downpipe and y-pipe, so im gonna need help with ballpark numbers, also, does anyone have the dimensions of the REV TII presilencer? i cant find them anywhere. btw i went from a straight 3" with small muffler/small resonator to a 3"dp to dual 2.5in setup with large straight through mufflers. it seems like better flow compared to when i left the silencer in the 3" exhaust.

 

i use their standard 2.5" presilencer, works great. flows enough for 273whp on stock turbo...

 

I also have the RB 2.5" presilencer with downpipe and I love it. Sounds so good.

 

i was hoping to keep a 3" pipe as long as i could, plus the y pipe it would feed into is a 3" diameter. anybody with the universal 3" presilencer out there? or maybe presilencer recomendations?

 

why do you need 3"? what kind of power are you making?