ok as i mentined before i have a straight through desigened catback on my 05 type-s its 60mm inner diameter and 65 od i believe. And i just wanna know why does it only deliver a kick on 1st gear only?? I thought that adding a straight through exhaust would put me where i wanna be but just lags it on second gear. My mods are a fujita cai, buddy club fan switch, hks grounds, stock ecu and stock headers (this is only engine wise)....here are some pics of the catback, if anyone can answer my question i'd appreciate it thanks in advanvce

pics are in order from the cat to the tail pipe












and the finished product

 

Get k-pro have it tuned and you should get the desired results! That is only a suggestion... but I think it would fix the problem

 

thanks man but is there any other way to make a cheaper solution meanwhile i get k-pro?? how bout a dcrh???

 

straight through just means it has no resonator..that doesn't mean you'll be gaining that much more hp. you should have gotten rid of your cat if you wanted a more noticable gain.

 

sorry man i just finished learning that straight through means not having a resonator my bad lol but what u said about deleting the cat, should i just get a dcrh??

 

deleting the cat then dcrh should do it

 

thanks guys for the advice

 

straight through also refers to not having a chambered/honeycombed muffler/resonators. most straight through exhausts are perforated instead.