on tc motors what would be better: 4-1 or 4-2-1 headers

 

i think the tC only has 4-1 header if im not mistaken. I dont know of any compnay that makes a 4-2-1. let me double check.

 

i think mmw makes 4-2-1...maybe i'm just crazy

 

they do and are the only ones that do.

DC says they also make one but it's not a true 4-2-1...it turns to 1 before the bend to the underbody.

And to answer your question, I personally prefer the 4-2-1 for the output throughout the ENTIRE powerband vs just the top end. A 4-1 is said to give you better gains at the top end than a 4-2-1....but then you end up losing a little bit of power in the lower end due to loss of back pressure (someone want to confirm this b/c I'm not 100% on it)

I've even had Toyota techs ask me, "wth do you have done to this? your tC pulls alot harder than most of them...are you SC'd?"

I personally feel the header alone is responsible for this, but it might just be me

 

MMW, 4-2-1

 

alphawerks 4-1...he he... my car lives at redline anyways

 

and yes you're right about back pressure resulting in power loss, however its not too noticeable except the "butt dyno" lol

 

i forget about mmw

 

a moderator forgot something??? not cool, no excuses

haha just kiddin petey... hows the car holdin so far?? Fix your exhaust leak yet?

 

BAN!!!!


its fine...exhuast leak is fixed...just trying to get my suspenion issue fixed

 

???? uh oh hadn't heard about that... what now lol