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Zach1340

Ok so this is probably a realy stupid question but is the dual exhaust advertised on Stillen's website considored a dual catback exhaust?
And I was also wondering, would the nissan dealership place that exhaust on without voiding the warranty? I know they wouldnt do the stillen Cat Conv w/ out voiding it because they arent street legal in any states rite?
Thank you so much for your help haha I feel kinda noobish

LiquidZ

Stillen's exhaust is not a dual exhaust. The reason being is that the y-pipe forces the exhaust to flow into one pipe for a brief moment in time. A siamese x-pipe or h-pipe allows the exhaust to flow in their own pipe for the full length of the exhaust. The x and h connections typically result in better exhaust scavenging which equals more power.

Now, a true dual exhaust is an exhaust with two completely independent pipes without any sort of cross connection.

I honestly couldn't tell you if a Nissan dealership would void your warranty if they installed an exhaust. They need to prove that the aftermarket part caused an issue to void your warranty (Moss Warranty Act) which is highly unlikely of any cat-back exhaust.

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Zach1340

thank you, so would the stillen exhaust not be the best way to go then?

miguez

I wouldn't say that. The Stillen exhaust is one of the best as far as power gain is concerned. It also has a very nice sound, and competitive weight.

It might be wise to wait for the Berk exhaust to see what they come up with, and even Borla's might be worth the wait.

import111

Competitive weight? It is the heaviest exhaust I have seen for the 370Z so far. AAM is lighter by at least 5 lbs., and the Fujimura is 10 lbs. lighter than stock which is way lighter than the Stillen which is around 10 lbs. heavier than stock.

Granted we need weights on more exhausts to see what is the norm, but from what I have seen so far the Stillen is heavy as hell.

theDreamer

But in a competitive sense, how much gain is in the AAM or Fujimura (I have not seen dyno results from those two)? The Stillen offers one of the highest rear wheel HP gains from a CBE so far and only adds 10 pounds. Now if AAM or Fujimura can get close (does not have to equal) in performance and reduce weight then it is a tough call on which is better then.

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DDMotorsports will this be the week?

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13.369 @ 102.73 Bone Stock. BERK HFC's installed 5/14/09 @ 1490miles, 13.212 @ 106.15. Cobb Post MAF Hoses installed 3/20/10 @ 5,043miles, future: FI exhaust with 18" res and s/s cans.