Page 1 of 1
WTK STi Exhaust
Posted: December 10th, 2011, 11:21 am
by EVO III Monster
how come the 05 STi dont rumble like the older model onez?
Re: WTK STi Exhaust
Posted: December 10th, 2011, 12:34 pm
by VexXx Dogg
Has to do with the exhaust manifold design for efficiency.
Older sti's and recent WRX's came with a single scroll setup with an unequal length manifold.
Your STI has equal length manifold and a twinscroll turbo. It does not rumble like the older scoobys, but it sounds awesome with a proper exhaust.
Re: WTK STi Exhaust
Posted: December 10th, 2011, 4:29 pm
by EVO III Monster
ok thanks
so if i get the unequal length headers i would get the rumble then.
i installed a full 3.5 inch stainless steel exhaust already but i wha the rumble..lol
Re: WTK STi Exhaust
Posted: December 10th, 2011, 4:43 pm
by VexXx Dogg
It wont work properly and you will lose a lot of performance!
Talk to barry, he can give you some options, but I thought you wanna leave this one stock
Re: WTK STi Exhaust
Posted: December 13th, 2011, 10:03 am
by Jimbo
RICE lol!
Re: WTK STi Exhaust
Posted: December 13th, 2011, 10:17 am
by tardissubie
VexXx Dogg wrote:Has to do with the exhaust manifold design for efficiency.
Older sti's and recent WRX's came with a single scroll setup with an unequal length manifold.
Your STI has equal length manifold and a twinscroll turbo. It does not rumble like the older scoobys, but it sounds awesome with a proper exhaust.
Correct! I recall seeing a legacy switching to a single scroll setup from a twinscroll but I very much doubt you want to do that with your STi just to rumble...