Originally Posted by spiderman Josh/Kyle - I just got my Stillen Catback Exhaust delivered along with the CAI's. They are still in the box. I'm a bit troubled about all
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05-09-2009, 09:52 PM | #46 (permalink) | |
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Quote:
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05-09-2009, 09:56 PM | #47 (permalink) |
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^ lol, I remember buying a hooker exhaust for my trans am, $350 just a couple years ago. But yeah, it's a little hard to stomach any issues when you have paid top dollar.
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05-10-2009, 02:55 AM | #48 (permalink) |
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I have both the Stillen G3 intake and the Berk HFCs being delivered next week. After reading this thread and a few others I'm not sure now if they will both be going on. I am not interested in a hissing and raspy engine. Does anyone know exactly where these noises are coming from?
For those who have the HFCs and intake only are you experiencing any problems at all? Thanks. |
05-11-2009, 01:33 PM | #49 (permalink) |
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Danny, I just watched the video. Earlier in the thread I posted than on my car(an 05 g35), I have been through 8 exhaust configurations, and I've always had a hiss when decelerating in the lower rpms.
I see that your car exhibits the same behavior. In my case, after 3 years, the cause of the hiss is still unidentified. I hope for your sake that you are correct and the join/gasket is causing the leak/hiss. Good luck. |
05-11-2009, 03:31 PM | #51 (permalink) |
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The hiss is apparently normal and nothing to worry about. It doesn't sound bad, there's no reason to complain about it really. The only concern was whether it was a leak, but even non-leaking exhausts have that sound.
As for rasp: compared to the stock exhaust, or say a mild exhaust on a big V8, there is some raspiness to the note. Mine was really bad at first, but that was due to a leak. With the leak fixed, I find the sound to be awesome. There's a little rasp in there, but it's just another subtle component of the sound, it's not a big fart can sound or anything. |
05-11-2009, 03:50 PM | #53 (permalink) |
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Intakes will give a hiss, that's the rush of air. I'm more concerned about any leaks/hisses coming from the catback exhaust, and having rattles due to clearance issues with the cross member. I'll guess I'll take Josh's word at Stillen and follow their instructions to the tee to see how the install comes out, as he said they addressed this. Wish me luck!
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05-11-2009, 04:10 PM | #56 (permalink) |
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Guys, it's not the intake, it's not the cat-back, it's the HFCs.
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05-11-2009, 11:26 PM | #57 (permalink) |
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FYI 100 mi after install of berks hfc and stillen cbe my ses/cel light came on
luckily amplifiedmotorsports is great with there customers and i will have it checked tomorrow i will keep you guys posted
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05-12-2009, 08:54 PM | #58 (permalink) |
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update: code was p0456 small evap leak
from what i gathered it could be a loose gas cap or i might have a defective cap last time i got the ses/cel light on i assumed it was the gas cap so this is the second time it has happend(assuming since i never check the code 1st time i got the light) is this covered under warranty? im afraid they might deny it as i just added my bolt ons and the dealer might blame it on them
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05-13-2009, 02:54 AM | #59 (permalink) |
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The hiss that you guys hear as the revs drop in the 3-4K range is a well known sound when putting test pipes on any of the VQ motors. It applies to the 350Z/G35/G37. If any of you are previous Z/G owners then you are already familiar with the term "rasp". Test pipes will have the most pronounced hiss/rasp, HFC's with an aftermarket exhaust will have it as well if you know what to listen for. Resonated test pipes will help with reducing the rasp, but nothing short of the full OEM exhaust will completely eliminate it.
tru-asistik = if you've ruled out the gas cap, check the evap can lines in the rear of the car. They are on the passenger side right behind the exhaust tip. If you have a tiny leak there it will throw that P0456 code. The hiss/whistle you hear from the intakes is the exact same thing as the test pipe hiss. Resonances also happen in reverse on the intake side. RCZ's video of his Stillen CBE + HFC vid. You can hear it in there, not as prounouced as DannyGT's, but it's there. Thanks for posting the vids guys! [youtubehq]6aIiNLfUnos[/youtubehq]
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