No you buy the Stillen because you want the same performance gains with a better tone and much better styling.

 

but the stillen doesn't have the same performace gains.

 

if that holds true,
wat did ur car dyno at with the stealin exhaust on?

 

Let's see....the Injen dyno shows a 17+ rwhp gain. Stillen only "claims" 15hp....and that's at the crank. So how do you figure the same performance gains? I realize you're biased because you've already purchased your Stillen exhaust. Better tone and styling?....well you're entitled to your opinion, but if you like to go by price/performance...Stillen doesn't even come close.

 

Let's see....the Injen dyno shows a 17+ rwhp gain. Stillen only "claims" 15hp....and that's at the crank. So how do you figure the same performance gains? I realize you're biased because you've already purchased your Stillen exhaust. Better tone and styling?....well you're entitled to your opinion, but if you like to go by price/performance...Stillen doesn't even come close.

 

Hey Setr, peep my avatar !

kthxbbl

 

How witty! Come up with that all by yourself?

Get back to me when your miracle exhaust is done....I'll be anxiously awaiting.

 

How witty! Come up with that all by yourself?

Get back to me when your miracle exhaust is done....I'll be anxiously awaiting.

 

Well, lets see, just get a straight pipe from the headers and angle it to come out right at the side of the car. Theres a pretty cheap exhaust which would produce lots of rwhp (just removed the cats and the rest of the restrictive piping), would only weight about $10, and only cost $350. Ridiculous, no... impractical and not street legal, yes.

 

Good point!

I was referring to a street legal application that uses the exhaust cut-outs in the bumper, but I guess it could be done how you described. IMO, exhaust coming out of the sideskirts in front of the rear tires looks awesome.

 

Setr, learn to post one-at-a-time now ? Impressive ^_^

 

Now you're gonna attack my posting skills?!?!? Get a friggin' life man.

Any word on your miracle exhaust yet?.....................

 

Ahahah, miracle exhaust ? You mean the same one that you are bragging about, but without the fugly-*** rice tips ?

No word yet, I'm counting on my boy Russ @ Injen to give the word.

Ps, check out my avatar one more time

 

This is the same company that got 8X the performance gains then anyone els when they dyno there intake. Now people that scratch there head at one dyno from this company praise another ??? Make up your minds.

I would not call 2HP a noticable performance gain. Im sure by the time you break down all the good exhausts that are avail today the performance gains are about the same. What you are buying is looks/sound/price. To make a statement about a product that for now only lives in prototype land is a bit silly.

I never said the Stillen was bettter im just being realistic in saying that most of these early exhausts perform the same. Im not trying to bash the Injen im sure its a very nice exhaust. I just agree with most about the styling choice. And to say that the stillen is 1/3 the performance of the Injen is ignorant.

 

The performance gains are NOT the same. Stillen made roughly 8 whp, the Injen made as much as 19whp.

It's pointless to argue which one looks like rice and what not. Get the one the you feel performs good enough for you and looks the best to you.

I like the grapeshooter style and the one that makes the most hp.

 

I'm wasn't trying to single out Stillen, I just threw that name out there originally, so the 1/3 performance gains was just a quick guesstimate....but not that far off (8hp to 19hp). I don't think 2hp is noticable either, but 11hp is a different story.

Most of these STOCK-LOOKING early exhausts do perform similarly, but Injen has put up much better #'s and for less money than all of the others I've seen.

If you don't like the sound and stlying of the Injen, then you should buy something else. However, those that do like the Injen's sound and look are getting a much better value on performance:

Stillen: $1100/8hp = $137 per hp
Injen: $815/19hp = $43 per hp

 

I was doing a comparison by ft/lb tq. I think thats more importaint than HP numbers. Stillen has been dyno at 15 to 18 ft/lb tq gains. Injen claims 15.7 .

 

Agreed. Torque is more important, but this is pulled straight off of Stillen's website:

2/3/2003 - The STILLEN 350Z exhaust, crafted of Mandrel-bent Stainless Steel, is a True Cat-Back System designed for long service life, and helps the Z pump out an incredible 13 additional horsepower at 5600 RPM and 14-ft.lbs. of torque at 4500 RPM.

Do you think they would underrate their gains? That 15.7 ft/lbs was pulled from an Injen dyno (not just a claim) performed in front of many spectators. I saw the post that said Stillen gained 8hp and 18 ft/lbs, but I have yet to see a Stillen dyno. Is there one posted on this forum?

 

You guys are funny when you go back and forth like this. Yeesh...

 

I'm no genius but just by looking at the design of the Stillen and Injen since that's what mainly being compared I would "assume" that the Injen would definitely have better results! The purpose of an aftermarket exhaust is to free up as much flow as possible while eliminating constrictions right?

The Injen is pretty much as straight flowing from the front to the rear as you could get considering the path and contour of the Z underbody. Where as the Stillen pipes combine, separate, and even come close to a few 90* bends?

Again, no genius here...but seems logical to me for their exhaust no?