Baffled..GTHAUS exhaust w/ HFC..then CAI

jlbrenne · 06-17-2013, 04:23 PM

First mod was the exhaust...sounded great. loud and clean. installed the stillen HFC's and GOD DAMN loud....THEN, installed my Stillen Gen 3 CAI...and the loudness was reduced to half....

Is it because of better air flow now??????

I honestly figured with the CAI that it would even sound louder...but NOPE..way wrong.

Thoughts???

Sh0velMan · 06-17-2013, 04:26 PM

Running super rich or super lean will change exhaust tone significantly.

Reset your battery and drive it hard for a few days.

jlbrenne · 06-17-2013, 04:38 PM

Out of curiousity-what will resetting your battery do????

Sh0velMan · 06-17-2013, 04:40 PM

Quote:

Originally Posted by jlbrenne

Out of curiousity-what will resetting your battery do????

Unplugging the battery for a few minutes will clear the learned fuel data and allow the ECU to re-learn more quickly than if it had to adjust from existing trim data.

jlbrenne · 06-17-2013, 05:08 PM

Quote:

Originally Posted by Sh0velMan

Unplugging the battery for a few minutes will clear the learned fuel data and allow the ECU to re-learn more quickly than if it had to adjust from existing trim data.

Gotcha! I had no clue. I'll give it a shot tonight and see what happens. I plan on getting a tune in the next month or so. I mean, dont get me wrong the sound is still great. Its just when i got the HFC's installed it was amazing and exactly what I was looking for. Now with the cai installed its just great again.

tjlazer · 06-17-2013, 05:26 PM

If adding the CAI it reduced the sound. THAT IS A GREAT THING! As that combo was absurdly loud and annoying. I had it and ended up selling it for a FI TDX CBE with Hi Flow cats. Much better.

jlbrenne · 06-17-2013, 06:32 PM

Quote:

Originally Posted by tjlazer

If adding the CAI it reduced the sound. THAT IS A GREAT THING! As that combo was absurdly loud and annoying. I had it and ended up seeling it for a FI TDX CBE with Hi Flow cats. Much better.

I can see how you might have felt that way...lol.. It def reduce the sound greatly!!...lol

Sales@AAMComp · 06-18-2013, 10:54 AM

Maybe you're hearing more engine noise now from the intakes vs only exhaust noise before

06-17-2013, 04:23 PM	#1 (permalink)
jlbrenne Track Member Join Date: Jul 2012 Location: Atlanta GA Posts: 586 Drives: Roadster BLACK Rep Power: 14	Baffled..GTHAUS exhaust w/ HFC..then CAI First mod was the exhaust...sounded great. loud and clean. installed the stillen HFC's and GOD DAMN loud....THEN, installed my Stillen Gen 3 CAI...and the loudness was reduced to half.... Is it because of better air flow now?????? I honestly figured with the CAI that it would even sound louder...but NOPE..way wrong. Thoughts??? __________________ Black Rdstr:GTHAUS Meisterschaft FCB.Tint(20%+50% windshield).3"Carb Stub Ant.Z Lisc Plt & LED.Rr fog.VF Fend.Cust Handles.EVO Cust Rdstr Wing.Varrstoen 19" Whls.Stillen HFC&CAI.Swift Spring.VQ37 Cust Mani.Z1 UPREV.Amuse.310whp/254torq

06-17-2013, 04:26 PM	#2 (permalink)
Sh0velMan A True Z Fanatic Join Date: Jan 2012 Location: Dallas/Ft.Worth Posts: 3,349 Drives: Noisily. Rep Power: 20	Running super rich or super lean will change exhaust tone significantly. Reset your battery and drive it hard for a few days. __________________ Buy My Car! \| Build Thread

06-17-2013, 04:38 PM	#3 (permalink)
jlbrenne Track Member Join Date: Jul 2012 Location: Atlanta GA Posts: 586 Drives: Roadster BLACK Rep Power: 14	Out of curiousity-what will resetting your battery do???? __________________ Black Rdstr:GTHAUS Meisterschaft FCB.Tint(20%+50% windshield).3"Carb Stub Ant.Z Lisc Plt & LED.Rr fog.VF Fend.Cust Handles.EVO Cust Rdstr Wing.Varrstoen 19" Whls.Stillen HFC&CAI.Swift Spring.VQ37 Cust Mani.Z1 UPREV.Amuse.310whp/254torq Last edited by jlbrenne; 06-17-2013 at 04:49 PM.

06-17-2013, 05:26 PM	#6 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 52 Posts: 2,496 Drives: Z34, R35 Rep Power: 19	If adding the CAI it reduced the sound. THAT IS A GREAT THING! As that combo was absurdly loud and annoying. I had it and ended up selling it for a FI TDX CBE with Hi Flow cats. Much better. __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV Last edited by tjlazer; 07-02-2013 at 12:17 AM.

06-18-2013, 10:54 AM	#8 (permalink)
Sales@AAMComp A True Z Fanatic Join Date: Jul 2012 Location: Annapolis Junction, MD Posts: 4,079 Drives: GT-R Rep Power: 21	Maybe you're hearing more engine noise now from the intakes vs only exhaust noise before __________________ Tyler Day, Technical Sales TylerD@aamcompetition.com 301-497-9214 Direct AAM Competition \| YouTube channel \| LIKE us on Facebook!

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