Exhaust is too loud

PheeNoIVI · 03-04-2015, 11:57 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, 11:58 AM

Fast Intentions FTW

speedfreek · 03-04-2015, 12:02 PM

Go ahead and get your order in for Fast Intentions.

PheeNoIVI · 03-04-2015, 12:14 PM

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, 12:20 PM

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, 12:23 PM

Thanks ill contact him!

gomer_110 · 03-04-2015, 12:28 PM

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

FPenvy · 03-04-2015, 12:34 PM

I guess when I go show up for an autox event i'm screwed lol

PheeNoIVI · 03-04-2015, 12:34 PM

What length of Resonators do you have?

JARblue · 03-04-2015, 12:35 PM

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, 12:37 PM

Quote:

Originally Posted by JARblue

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

damn straight........

get it

PheeNoIVI · 03-04-2015, 12:37 PM

So the standard of testing is 50ft away?

FPenvy · 03-04-2015, 12:38 PM

Quote:

Originally Posted by PheeNoIVI

So the standard of testing is 50ft away?

for my sake I hope it's a mile.

I've had friends call me and heard me coming or going from multiple miles away.

speedfreek · 03-04-2015, 12:42 PM

Quote:

Originally Posted by PheeNoIVI

So the standard of testing is 50ft away?

Yes, 50ft away is going to be about the norm. For instance AMP is 98db at 50ft.

Quote:

Originally Posted by FPenvy

for my sake I hope it's a mile.

I've had friends call me and heard me coming or going from multiple miles away.

You better worry more about if they even let you on the track with those RE71 in 205's on the back!

Tadpole · 03-04-2015, 12:56 PM

If you want to go the cheaper route do what I did. Custom xpipe, true dual, 18" resonators with Top Speed axle backs. Good low rumble and I had no complaints at all at my first autox event. Every other Z owner that has heard it really likes the tone.

03-04-2015, 11:57 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, 11:58 AM	#2 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5850	Fast Intentions FTW FPenvy, speedfreek and tturbo370z like this. __________________ 638WHP 541WTQ @ 13.5PSI Build thread

03-04-2015, 12:02 PM	#3 (permalink)
speedfreek A True Z Fanatic Join Date: Feb 2012 Location: Huntsville,AL Posts: 1,724 Drives: '12 370Z PW 6sp Rep Power: 18	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, 12:20 PM	#5 (permalink)
speedfreek A True Z Fanatic Join Date: Feb 2012 Location: Huntsville,AL Posts: 1,724 Drives: '12 370Z PW 6sp Rep Power: 18	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

03-04-2015, 12:28 PM	#7 (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, 12:14 PM	#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, 12:23 PM	#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, 12:34 PM	#9 (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?

03-04-2015, 12:37 PM	#12 (permalink)
PheeNoIVI Base Member Join Date: Aug 2014 Location: Santa Rosa CA Posts: 53 Drives: 2014 Nissan 370z Rep Power: 11	So the standard of testing is 50ft away?

03-04-2015, 12:56 PM	#15 (permalink)
Tadpole A True Z Fanatic Join Date: Sep 2013 Location: Lockhart, TX Posts: 1,082 Drives: 13 Nissan 370Z A7 Rep Power: 18	If you want to go the cheaper route do what I did. Custom xpipe, true dual, 18" resonators with Top Speed axle backs. Good low rumble and I had no complaints at all at my first autox event. Every other Z owner that has heard it really likes the tone. carlitos_370z likes this. __________________ Takeda TR3009P Short Ram Intakes, Custom Dual Exhaust, X-Piped with 18" Resonators & TopSpeed Axle Backs. EVO-R Led Third Foglight,

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