STILLEN 370Z Dual Cat-Back Stainless Exhaust System

semtex · 05-09-2009, 01:15 PM

Everything you have described is normal. And fyi, if you install headers, that will smooth-out the sound and make it more refined again. I personally miss the more raw sound I had before I put the headers on. I did disconnect the battery, btw. wstar is right that your ECU will learn your mods regardless, but disconnecting the battery will expedite the process.

wstar · 05-09-2009, 05:37 PM

Re: the hissing sound, I've still got that now that my leak is fixed. I guess it's normal. Sounds kinda cool anyways

tru_Asiatik · 05-09-2009, 05:41 PM

^so we can rule off leaks then??

wstar · 05-09-2009, 05:58 PM

Quote:

Originally Posted by tru_Asiatik

^so we can rule off leaks then??

For the hissing noise, yes

If you're getting an atrocious rasp at certain RPM ranges that you hate hearing from inside the car, that might be a leak. Was in my case anyways.

tru_Asiatik · 05-09-2009, 06:06 PM

yes for the hissing noise same one that danny gt has
well i just got my exhaust installed today
im gong back to the shop in 2 weeks to see if they find any leaks

but thank you
knowing the hiss at 2.5-3k is normal kinda puts me at ease

05-09-2009, 01:15 PM	#1 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	Everything you have described is normal. And fyi, if you install headers, that will smooth-out the sound and make it more refined again. I personally miss the more raw sound I had before I put the headers on. I did disconnect the battery, btw. wstar is right that your ECU will learn your mods regardless, but disconnecting the battery will expedite the process. __________________ "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.

05-09-2009, 05:37 PM	#2 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3595	Re: the hissing sound, I've still got that now that my leak is fixed. I guess it's normal. Sounds kinda cool anyways __________________ 7AT Track Car! Journal thread / Car setup details

05-09-2009, 05:41 PM	#3 (permalink)
tru_Asiatik Track Member Join Date: Feb 2009 Location: so cal Posts: 793 Drives: 2009 370Z 6MT Rep Power: 271	^so we can rule off leaks then?? __________________ Stillen G3 CAIStillen CBEBerk's HFCEibach ProkitHotchkis Swaysichiba 15/20mm spacers? Oil coolerStillen PulleyStillen Headers Last edited by tru_Asiatik; 05-09-2009 at 05:47 PM.

05-09-2009, 06:06 PM	#5 (permalink)
tru_Asiatik Track Member Join Date: Feb 2009 Location: so cal Posts: 793 Drives: 2009 370Z 6MT Rep Power: 271	yes for the hissing noise same one that danny gt has well i just got my exhaust installed today im gong back to the shop in 2 weeks to see if they find any leaks but thank you knowing the hiss at 2.5-3k is normal kinda puts me at ease __________________ Stillen G3 CAIStillen CBEBerk's HFCEibach ProkitHotchkis Swaysichiba 15/20mm spacers? Oil coolerStillen PulleyStillen Headers

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