Exhaust is too loud

PheeNoIVI · 03-04-2015, 10:57 AM

Well guys, its the beginning of the season, and since i just got my car last September I am looking to take it to its first track and autoX days this year. When I first got the car I was less than impressed with the exhaust note. Too quiet. So I installed short tails. But now, i need something more quiet to be allowed on the track. What are you guys running exhaust wise? I need to be less than 95db. I'd really rather not lose completely my exhuast note i have now. But I dont want to spend the cash for valvetronic, as I still need an oil cooler and such. Any reccomendations? Thanks!

TerribleONE · 03-04-2015, 10:58 AM

Fast Intentions FTW

speedfreek · 03-04-2015, 11:02 AM

Go ahead and get your order in for Fast Intentions.

PheeNoIVI · 03-04-2015, 11:14 AM

Thanks guys. Is that confirmed to be quiet enough? I just dont want to still be too loud after dropping the cash and have to go about using a decibel devil or something as well.

speedfreek · 03-04-2015, 11:20 AM

Talk to Tony at FI. I am not sure exactly what the noise level is but it is quiet enough I didn't get any complaints at AMP or Barber.

PheeNoIVI · 03-04-2015, 11:23 AM

Thanks ill contact him!

Bulletz4break · 03-05-2015, 08:27 AM

Quote:

Originally Posted by speedfreek

Go ahead and get your order in for Fast Intentions.

Lead times are averaging 11-13 weeks currently. Which is unfortunate because I was going to order one.

speedfreek · 03-05-2015, 10:30 AM

It is worth the wait. Haven't heard about the valvetronic sounds like a new option.

FPenvy · 03-05-2015, 10:36 AM

Quote:

Originally Posted by speedfreek

It is worth the wait. Haven't heard about the valvetronic sounds like a new option.

not that I know of. the quote from the above poster is worded poorly. could be a FI exhaust that another garage is adding it for him.

but $2800 sound like the price of the armytrix exhaust with a valvetronic setup. may have just mislabeled in his post.

gomer_110 · 03-04-2015, 11:28 AM

At 50' (SCCA autox rules) my car with FI CBE and LTH was ~93-94 dB.

PheeNoIVI · 03-04-2015, 11:34 AM

What length of Resonators do you have?

JARblue · 03-04-2015, 11:35 AM

Quote:

Originally Posted by PheeNoIVI

What length of Resonators do you have?

None. He's running straight pipes from the headers back and probably 40+ dbs over the limit lol

FPenvy · 03-04-2015, 11:37 AM

Quote:

Originally Posted by JARblue

lol none... he's running straight pipe from the headers back

damn straight........

get it

chops · 03-04-2015, 11:43 PM

Quote:

Originally Posted by gomer_110

At 50' (SCCA autox rules) my car with FI CBE and LTH was ~93-94 dB.

i blew 95db at 4500 RPM at laguna seca with an ARK grip v2, and HFC's and was meatballed. i cant see your setup doing under 95

gomer_110 · 03-05-2015, 06:45 AM

Quote:

Originally Posted by chops

i blew 95db at 4500 RPM at laguna seca with an ARK grip v2, and HFC's and was meatballed. i cant see your setup doing under 95

Could just be settings on the sound meters. Early in the day we had stock 911's exceeding 100 db because the meter was set to "fast" response. Once it was changed to slow response everyone was easily under the 100 db max. Also the meter was measuring from the driver's side of the car not behind it.

03-04-2015, 10:57 AM	#1 (permalink)
PheeNoIVI Base Member Join Date: Aug 2014 Location: Santa Rosa CA Posts: 53 Drives: 2014 Nissan 370z Rep Power: 11	Exhaust is too loud Well guys, its the beginning of the season, and since i just got my car last September I am looking to take it to its first track and autoX days this year. When I first got the car I was less than impressed with the exhaust note. Too quiet. So I installed short tails. But now, i need something more quiet to be allowed on the track. What are you guys running exhaust wise? I need to be less than 95db. I'd really rather not lose completely my exhuast note i have now. But I dont want to spend the cash for valvetronic, as I still need an oil cooler and such. Any reccomendations? Thanks!

03-04-2015, 10:58 AM	#2 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5851	Fast Intentions FTW FPenvy, speedfreek and tturbo370z like this. __________________ 638WHP 541WTQ @ 13.5PSI Build thread

03-04-2015, 11:02 AM	#3 (permalink)
speedfreek A True Z Fanatic Join Date: Feb 2012 Location: Huntsville,AL Posts: 1,724 Drives: '12 370Z PW 6sp Rep Power: 19	Go ahead and get your order in for Fast Intentions. TerribleONE and carlitos_370z like this. __________________ Tomei\|Berk\|Takeda\|ZSpeed\|Fortune Auto\|Swift\|Eibach\|SPL\|Carbotech\|Motul\|Powertrix\|Stillen\|Aerojacket\|Z1\|Forgestar\|Enkei\|Project Kics\|Nismo Ti\|Llumar speedfreek's journal

03-04-2015, 11:20 AM	#5 (permalink)
speedfreek A True Z Fanatic Join Date: Feb 2012 Location: Huntsville,AL Posts: 1,724 Drives: '12 370Z PW 6sp Rep Power: 19	Talk to Tony at FI. I am not sure exactly what the noise level is but it is quiet enough I didn't get any complaints at AMP or Barber. TerribleONE likes this. __________________ Tomei\|Berk\|Takeda\|ZSpeed\|Fortune Auto\|Swift\|Eibach\|SPL\|Carbotech\|Motul\|Powertrix\|Stillen\|Aerojacket\|Z1\|Forgestar\|Enkei\|Project Kics\|Nismo Ti\|Llumar speedfreek's journal

03-05-2015, 10:30 AM	#8 (permalink)
speedfreek A True Z Fanatic Join Date: Feb 2012 Location: Huntsville,AL Posts: 1,724 Drives: '12 370Z PW 6sp Rep Power: 19	It is worth the wait. Haven't heard about the valvetronic sounds like a new option. __________________ Tomei\|Berk\|Takeda\|ZSpeed\|Fortune Auto\|Swift\|Eibach\|SPL\|Carbotech\|Motul\|Powertrix\|Stillen\|Aerojacket\|Z1\|Forgestar\|Enkei\|Project Kics\|Nismo Ti\|Llumar speedfreek's journal

03-04-2015, 11:14 AM	#4 (permalink)
PheeNoIVI Base Member Join Date: Aug 2014 Location: Santa Rosa CA Posts: 53 Drives: 2014 Nissan 370z Rep Power: 11	Thanks guys. Is that confirmed to be quiet enough? I just dont want to still be too loud after dropping the cash and have to go about using a decibel devil or something as well.

03-04-2015, 11:23 AM	#6 (permalink)
PheeNoIVI Base Member Join Date: Aug 2014 Location: Santa Rosa CA Posts: 53 Drives: 2014 Nissan 370z Rep Power: 11	Thanks ill contact him!

03-04-2015, 11:28 AM	#10 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	At 50' (SCCA autox rules) my car with FI CBE and LTH was ~93-94 dB. TerribleONE likes this. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

03-04-2015, 11:34 AM	#11 (permalink)
PheeNoIVI Base Member Join Date: Aug 2014 Location: Santa Rosa CA Posts: 53 Drives: 2014 Nissan 370z Rep Power: 11	What length of Resonators do you have?

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