I added the Stillen HFC's last Monday. The power and throttle response improved dramatically!! Stillen HFC's and exhaust are a good combo. The beast has finally awaken.

I decided to go with Stillen exhaust because it looks less "ricey" then F.I. I'll be taking off my Stillen intakes and swapping for Injen's when they come out though.

 

Did you dyno the car after HFC installed?
I wonder which HFC has better performance, Stillen HFC or Berk HFC??

 

I have a stillen intake too and hen i put it on i didn't feel any power out of beside the sound but the headers on the other hand made a big difference i have stillen headers on with HKS exhaust and i can feel the power but their intake sucks I'm gonna sell mine once Injen comes out with their intake

 

No I didn't dyno but I spoke to the guy at Berks and comapred how Berks and Stillen looked. The guy at Berks said they use the same material inside. The car feels amazing with the Stillen HFC. I can feel loads of back pressure now. I bet it would feel amazing with the Berks one too. I doubt there is much a difference...we are prob talking minor HP/TQ difference. Berks is shinnier though

 

Thanks for the info.
I couldn't decide which one to get.
I guess this time I'll go for Berk HFC.
Will post dyno when I have it installed.

 

noooo fast intentions!!!! ^

 

terrible, why FI when berk's are about $100 cheaper with similar HP gains? Just curious as to the advantages of FI HFC's.

 

well i guess if your in AZ then the advantages arent to many...?? i just think customer service at FI is unbeatable and in categories like this i believe you get what you pay for...

 

I can't argue with that. everything I've read and heard say customer service and knowledge is unbeatable at FI.

 

I mean i have not used berk so i cant give a side by side comparison... But its not like i was set on FI until i met tony and saw his stuff in person... thats all... when i find a great company i try to speak my mind... congrats on what you decide either way..

 

You felt loads of back pressure...? You should not feel it because you took back pressure away by opening up your exhaust more freely with the HFCs....

At least thats the way I understood it.

 

Right, Its supposed to free up some exhaust flow, not back pressure...

 

Woops that's what my dumb a@% meant...sorry don't know much about engines. What I meant was More Power!