Just curious for those who purchased the Stillen Headers...

1) Any good noticeable performance with these(No loss on torque?)?
2) Fitment Issues?
3) Loudness?
4) Rasp?


I'm planning on installing these with Hi-Flow cats (Berks) in one shot.

 

IMO, I would not add those additional mods without planning on a custom tune. You will loose low end torque and won't gain much other than sound.

 

If you have patience, I suggest you wait for the long tubes.

 

resonated longtubes is worth the wait or get the stillen if you wanna run HFC's

 

Who's making the resonated longtubes? I must have missed that thread.

 

there is no thread, Fast Intentions is making it

 

Long tubes? These straight pipes or some new type of HFC or Header?

 

I think they are headers that go straight to the exhaust. Not positive though.

 

im not sure either, lol but i googled a pic and this is what came up, so im going to assume it will replace the cat, but dont hold me too it, lol

http://www.pfyc.com/mm5/graphics/new/gt5012.jpg

 

Normal (short tube) headers connect the engine's exhaust ports to the cats. Long tube headers have the collector positioned further from the engine (targetting mid-high rpm gains) and hook up straight to your catback thus deleting your cats. They look something like this:



Resonance caused by the long tubes tend to make your engine sound like it's doing double the rpm it actualy is which is why I love the way those sound!!

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so they do replace the cats?

 

Indeed they do

 

That is too loud.

 

That just sounds stupid IMO. I can't believe how lame that sounds, its just crazy.

 

That sound should be comming from a straight up f1 race car. Not a 350z.