Question about Stillen CBE?

nextbesthing · 03-25-2010, 02:20 PM

The Stillen Exhaust comes with the muffler, resonated y-pipe, and y-pipe (bolts to the cats). I want to know if it is possible to use the stock y-pipe with the rest of the Stillen kit. The reason I ask is because a forum member is selling just the muffler and resonated y-pipe. If it does fit will I lose much power?

I e-mailed Stillen, they weren't much help.

NewlyIMPORTed · 03-25-2010, 02:51 PM

you wont get as much of a gain but i would think it wouldn't be that much maybe 2-3 hp and the sound will be maybe a tad quieter thats if it fits

nextbesthing · 03-25-2010, 05:41 PM

I don't mind the sound being a little quieter, I plan on going HFC in the future so I'm sure they will more than make up for the sound, I just hope the stock y-pipe is very constrictive

Josh@STILLEN · 03-26-2010, 11:51 AM

Yes, held up the stock section, should bolt up just fine. No estimations on power, we did all of our designing and testing incorporating the revised y-pipe..

Hope that helps..

semtex · 03-26-2010, 12:05 PM

What??? You guys actually did testing? Say it isn't so, Josh!

(I'm just kidding around, of course.)

Josh@STILLEN · 03-26-2010, 12:07 PM

It would be a shame not to fire up the dyno once in a while.. seeing as we already have it..

Modshack · 03-26-2010, 12:28 PM

Quote:

Originally Posted by nextbesthing

The reason I ask is because a forum member is selling just the muffler and resonated y-pipe. If it does fit will I lose much power?
.

Just from casual observation, the stock "Y" pipe appears to be one of the areas of highest restriction

Red370 · 03-26-2010, 12:59 PM

Quote:

Originally Posted by Modshack

Just from casual observation, the stock "Y" pipe appears to be one of the areas of highest restriction

Agreed, it almost seems like the pipe goes from 2.25" down to 1.75-2" or visa versa

spearfish25 · 03-26-2010, 02:32 PM

I recall a huge difference in diameter of the stock vs Stillen Y pipe, especially noticeable in the end once they've joined.

Daishi · 03-26-2010, 02:48 PM

Quote:

Originally Posted by semtex

What??? You guys actually did testing? Say it isn't so, Josh!

(I'm just kidding around, of course.)

lol. But did he do enough testing and did he use the correct method thats the question.. haha JK

03-25-2010, 02:20 PM	#1 (permalink)
nextbesthing Base Member Join Date: Nov 2009 Location: central jersey Posts: 187 Drives: 2009 PW 370Z Rep Power: 15	Question about Stillen CBE? The Stillen Exhaust comes with the muffler, resonated y-pipe, and y-pipe (bolts to the cats). I want to know if it is possible to use the stock y-pipe with the rest of the Stillen kit. The reason I ask is because a forum member is selling just the muffler and resonated y-pipe. If it does fit will I lose much power? I e-mailed Stillen, they weren't much help.

03-25-2010, 02:51 PM	#2 (permalink)
NewlyIMPORTed A True Z Fanatic Join Date: May 2009 Location: Kennesaw, GA Posts: 1,109 Drives: 11 STI Sedan Rep Power: 17	you wont get as much of a gain but i would think it wouldn't be that much maybe 2-3 hp and the sound will be maybe a tad quieter thats if it fits __________________ 2011 WRX STICobb Accessport, Nameless Performance exhaust, COBB SF Intake, COBB downpipe, 20% tint, Work Emotion XD9's

03-26-2010, 12:05 PM	#5 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 53 Posts: 5,995 Drives: People to drink Rep Power: 32	What??? You guys actually did testing? Say it isn't so, Josh! (I'm just kidding around, of course.) __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

03-26-2010, 02:32 PM	#9 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	I recall a huge difference in diameter of the stock vs Stillen Y pipe, especially noticeable in the end once they've joined. __________________ 2013 Cadillac V-Wagon, RIP Z

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03-25-2010, 05:41 PM	#3 (permalink)
nextbesthing Base Member Join Date: Nov 2009 Location: central jersey Posts: 187 Drives: 2009 PW 370Z Rep Power: 15	I don't mind the sound being a little quieter, I plan on going HFC in the future so I'm sure they will more than make up for the sound, I just hope the stock y-pipe is very constrictive

03-26-2010, 11:51 AM	#4 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 533	Yes, held up the stock section, should bolt up just fine. No estimations on power, we did all of our designing and testing incorporating the revised y-pipe.. Hope that helps..

03-26-2010, 12:07 PM	#6 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 533	It would be a shame not to fire up the dyno once in a while.. seeing as we already have it..