I was checking out this exhaust system for my car and was wondering how accurate everyone thinks the J's Racing claim of +15WHP was? This is for the Single Outlet model.

This sounds awfully high for just a Cat-Back on an S2000. If it's true I think I definitely found my next exhaust system.

Anyone have any experience with this system?

 

+15rwhp is a little high especially on NA for just exhaust. J's advertises this using their new header and N1 ecu...so with those mods it's possible.

I picked up 7hp and 3.6tq here https://www.s2ki.com/forums/index.ph...f=142&t=314629

 

If I'm not mistaken, you already had a test pipe before putting on full system correct? If so, you'd see more like 10+.

 

According to the Website the 70RR Single Outlet Racing unit picked up +20WHP with the N1 ECU and full header back setup. The exhaust I am refering to claims +15 with just the assumtion of this Cat Back.

 

It's not cat-back, it's header back. It includes the test pipe.