ok so im running a perrin uppipe and a PDE downpipe with a stock catback. am i really losing 14.2 whp??? i was just looking for some more info on my mbc and i stumbled upon this is it true??? am i really losing that much??? and if not how much am i losing because of my stock catback?

chris

btw i have...
samco ic hoses
perrin up
pde downpipe
hallman mbc
STI motor mounts
STI tranny mounts
whiteline alk
defi boost gauge

thanx for any info guys

 

help meh help meh please

chris

 

Well what your doing is having the 3rd cat on that is restricting your air huge. The equasion on fast are gas +air = more combustion = faster. If you have a lot of air coming in and not enough going out you are choking your car. You already did the hard parts anyways, the uppipe and downpipe. I myself love my Greddy Catback, you will open up lost horsepower and you will have a deeper tone to your exaust. Good Luck

WRX Rush

 

thanx alot wrx rush! yeah i just wanted to confirm the 14.2 whp loss is accurate. i plan on goin with the greddy cat back. hope its doesnt get extra loud or extra smelly cause of the greddy.

chris

 

Dude, go deep, go STROMUNG!



Or go deep, and go Japanese get a Tanabe Hyper Racing Medallion or something. Tanabes are SUPER CHEAP!

-Gagan

 

well i heard gino's exaust and its great till the external wastegate opens up...hahaha i like my exaust slightly over stock.

chris