

actually on my gen3 i keep my standard exhaust because i dont want to make to much noise, but, what should be the difference with an aftermarket exhaust



actually i have on my car:

Mine's ecu
greddy profec b, 1.2b
berk tech decat
aftermarket intercooler

apexi power intake

i says that because with my previous mk4 supra, i was unable to go up to 1b with the stock exhaust and no problem for 1.2b with an homemade exhaust, but with the mr2 i can already go up to 1.2b.



thanks