Comparison Vid: Stock, Stillen, and Berk :)

EVL370 · 03-28-2010, 07:30 PM

So in a nut shell its safe to say the Stillen, Berk, F.I cat backs will all give 15whp increase.

But doesnt the Stillen run a Y-pipe? The dyno's and website claims a 18whp increase. Is that right? Where would the design of the stillen exhaust make up the numbers due to the setback of having a Y - pipe? I was under the impression the best gains come from a X-pipe, Please correct me if I'm wrong....

bluestyle55 · 03-28-2010, 08:14 PM

Nice collaboration on this one!

spearfish25 · 03-28-2010, 08:59 PM

Quote:

Originally Posted by EVL370

So in a nut shell its safe to say the Stillen, Berk, F.I cat backs will all give 15whp increase.

But doesnt the Stillen run a Y-pipe? The dyno's and website claims a 18whp increase. Is that right? Where would the design of the stillen exhaust make up the numbers due to the setback of having a Y - pipe? I was under the impression the best gains come from a X-pipe, Please correct me if I'm wrong....

I can't show modeling equations or anything, but if the Y-pipe is designed well and has a large enough diameter where the Y merges, it shouldn't be restrictive.

03-28-2010, 07:30 PM	#1 (permalink)
EVL370 Base Member Join Date: Dec 2009 Location: Melbourne Posts: 209 Drives: Nissan 370Z Rep Power: 16	So in a nut shell its safe to say the Stillen, Berk, F.I cat backs will all give 15whp increase. But doesnt the Stillen run a Y-pipe? The dyno's and website claims a 18whp increase. Is that right? Where would the design of the stillen exhaust make up the numbers due to the setback of having a Y - pipe? I was under the impression the best gains come from a X-pipe, Please correct me if I'm wrong.... Last edited by EVL370; 03-28-2010 at 07:32 PM.

03-28-2010, 08:14 PM	#2 (permalink)
bluestyle55 Premium Member Join Date: Apr 2009 Location: Pa Posts: 194 Drives: 09 Nissan 370z B 6M Rep Power: 17	Nice collaboration on this one! __________________ 2009 370z 6MT Touring w/ Sport Pkg \| Invidia Gemini CBE\| Stillen G3 CAI \| ERZ HFC's \|X-Pel Clear Bra \| 20% Tint

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