i dont want all the flashy stuff out there so i want to go with this.does anyone know all the specs like diameter size piping or peices such as b-pipes, test pipes and resonators to get optimal performance?i haven't seen too many on here talk about these mufflers so i thout i would ask.i will also be installing a weapon-r header. i am trying to keep my exhaust system under $500
es tuning Universal Muffler 2.50 Black - JHPUSA.COM Serving JDM Since 1999

 

Under 5 hundred bucks you can buy one of the pre-fab'd setups from tanable, t1r, greddy... much cheaper and better looking than having it welded together for your kit.

 

i meant including headers.

 

if your goal is all motor, you're lookin at some small gains there, not really worth 500 bucks. But there will always be ballers out there. Anyways, the best way to look for optimal performance in terms of diameter specs is to look at what the name brands make, look at t1r's or spoon's, etc. I think they have 2 varieties, 50mm and 60mm diameters.

 

i just wanted to try and save$,but i will probably have to go with the name brands.i just dont like how most of them look,too ricey for me i guess.