most Quiet exhaust - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

l3thal · 03-20-2017, 03:32 AM

Hey guys, would like to get the lowest noise exhaust, sr20det

which would be the best an Apexi Noir, 2.5in BRM with high flow cat & 18" res, RSR ex mag with a high flow cat, anything else or just go custom?

what do you guys think is the lowest Db exhaust

JM216S14 · 03-20-2017, 05:02 AM

But you wont be able to hoon with a quiet exhaust?? You need a super loud one that sounds like a tractor....

anyways, I always read HKS sport exhaust. There is a few videos showing it idle and what not seems pretty timid.

ThePaddy · 03-20-2017, 05:12 AM

I fitted a twin exit exhaust with a magniflow resonator.

Looks stock flows great.

Go to a local exhaust shop they can make it up in 3" or 3.5

koukimonst3r · 03-20-2017, 06:08 AM

+1 on HKS sport exhaust

RB25GUY · 03-20-2017, 06:30 AM

Apexi WS2 is very quiet and has a nice sound when on throttle!

jedi03 · 03-20-2017, 08:16 AM

been around the hks quietest compared to the rest!

Nissan2nr22 · 03-20-2017, 04:42 PM

If you really want to get your exhaust quiet get any exhaust and go to a muffler shop and have them add long resonators.

Ex. my JZX100 straight pipe was very loud, went to my muffler shop, he charged me $60 out the door to add a 18" resonator and the sound went down by 30%

Or you can add another straight through muffler and lower the sound even more. It still sounded good when I revved it.

nate1 · 03-20-2017, 05:58 PM

i have the Apexi Noir and love it

jared420sx · 03-20-2017, 06:05 PM

The one with the most mufflers and smallest piping.

Kingtal0n · 03-22-2017, 08:25 AM

stock exhaust supports 260rwhp

no need to upgrade until you pass that

battery1882 · 03-22-2017, 09:00 AM

cheaper route is ISR megaphone, or anything that has a proper muffler.

krron · 03-22-2017, 10:01 AM

I agree I have a HKS sport on my 14 with the rb25 and it is so quiet. Don't even have to worry about cops its great.

Loufig · 03-22-2017, 11:30 AM

HKS sport +1

Feast Japan · 03-22-2017, 11:53 AM

Ive run the Nismo on my old S15, very quiet and flowed very well. Second to that I also ran Silent hi-power HKS system on the S14. But with the HKS I had to make some changes to the acceleration map as it was robbing a bit of HP.

***dorkidori_s13*** · 03-22-2017, 12:45 PM

Quote:

Originally Posted by HIV+

+1 on HKS sport exhaust

this... ive had one on my S13 with SR for almost 4 years now. wouldnt trade it for the world!!!

grudge · 03-23-2017, 12:42 AM

+1 for Apexi noir

Frank_Jaeger · 03-23-2017, 01:48 AM

Quote:

Originally Posted by Kingtal0n

stock exhaust supports 260rwhp

no need to upgrade until you pass that

I'm assuming you mean it bottlenecks after that point for peak power. But that's not the whole story. I noticed a huge improvement in turbo spool by going to a larger exhaust.

TheRealSy90 · 03-23-2017, 03:00 AM

umm, stock? yeah stock.

Jorgs_7 · 03-23-2017, 07:36 AM

Blitz Realize TT

So quiet that I sold it for a ebay 3" set up.

Exhaust manifold makes a big difference with SR sounds too

NiSilS14 · 03-23-2017, 12:29 PM

Apexi noir here. The bigger the piping the louder the exhaust will be. muffler designs will also affect sound.

Kingtal0n · 03-23-2017, 10:52 PM

Quote:

Originally Posted by Frank_Jaeger

I'm assuming you mean it bottlenecks after that point for peak power. But that's not the whole story. I noticed a huge improvement in turbo spool by going to a larger exhaust.

I've done a fair amount of testing using a cut-out on the stock exhaust. There is something to be gained by reducing exhaust restriction, up to a point, when using a small t-25 style turbocharger. The optimal point was with the cut-out only partially open, around 20% of a 2.5" cutout.

A sweet blend of good exhaust velocity and overall flow capability is necessary.

di-devol · 03-23-2017, 11:37 PM

Quote:

Originally Posted by Kingtal0n

I've done a fair amount of testing using a cut-out on the stock exhaust. There is something to be gained by reducing exhaust restriction, up to a point, when using a small t-25 style turbocharger. The optimal point was with the cut-out only partially open, around 20% of a 2.5" cutout.

A sweet blend of good exhaust velocity and overall flow capability is necessary.

So just like your posts, more hot air?

03-20-2017, 03:32 AM	#1
l3thal Join Date: Jun 2011 Location: orlando Age: 35 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	most Quiet exhaust Hey guys, would like to get the lowest noise exhaust, sr20det which would be the best an Apexi Noir, 2.5in BRM with high flow cat & 18" res, RSR ex mag with a high flow cat, anything else or just go custom? what do you guys think is the lowest Db exhaust

03-20-2017, 05:12 AM	#3
ThePaddy Join Date: Oct 2013 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	I fitted a twin exit exhaust with a magniflow resonator. Looks stock flows great. Go to a local exhaust shop they can make it up in 3" or 3.5 __________________ Using Tapatalk

03-20-2017, 06:08 AM	#4
koukimonst3r Zilvia Junkie Join Date: Jul 2009 Location: Vancouver, B.C. Posts: 333 Trader Rating: (6) Feedback Score: 6 reviews	+1 on HKS sport exhaust __________________ ig : koukimonst3r

03-20-2017, 06:05 PM	#9
jared420sx Zilvia FREAK! Join Date: Jan 2014 Location: Ny Age: 28 Posts: 1,057 Trader Rating: (13) Feedback Score: 13 reviews	The one with the most mufflers and smallest piping. __________________ https://www.instagram.com/jdpowersport_/

03-23-2017, 12:29 PM	#20
NiSilS14 Zilvia Junkie Join Date: Sep 2003 Location: Denver, CO Posts: 569 Trader Rating: (20) Feedback Score: 20 reviews	Apexi noir here. The bigger the piping the louder the exhaust will be. muffler designs will also affect sound. __________________ @adamcs14

03-20-2017, 05:02 AM	#2
JM216S14 Zilvia Junkie Join Date: Apr 2007 Location: Over the gate Posts: 448 Trader Rating: (3) Feedback Score: 3 reviews	But you wont be able to hoon with a quiet exhaust?? You need a super loud one that sounds like a tractor.... anyways, I always read HKS sport exhaust. There is a few videos showing it idle and what not seems pretty timid.

03-20-2017, 08:16 AM	#6
jedi03 Nissanaholic! Join Date: Jul 2008 Location: albuquerque Posts: 1,842 Trader Rating: (8) Feedback Score: 8 reviews	been around the hks quietest compared to the rest!

03-20-2017, 04:42 PM	#7
Nissan2nr22 Nissanaholic! Join Date: Aug 2008 Location: USA Posts: 1,631 Trader Rating: (30) Rides Gallery: Nissan2nr22 Feedback Score: 30 reviews	If you really want to get your exhaust quiet get any exhaust and go to a muffler shop and have them add long resonators. Ex. my JZX100 straight pipe was very loud, went to my muffler shop, he charged me $60 out the door to add a 18" resonator and the sound went down by 30% Or you can add another straight through muffler and lower the sound even more. It still sounded good when I revved it.

03-20-2017, 05:58 PM	#8
nate1 Zilvia Member Join Date: Jan 2010 Location: harrisburg/philly Age: 39 Posts: 204 Trader Rating: (7) Feedback Score: 7 reviews	i have the Apexi Noir and love it

03-22-2017, 08:25 AM	#10
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 42 Posts: 4,829 Trader Rating: (17) Feedback Score: 17 reviews	stock exhaust supports 260rwhp no need to upgrade until you pass that

03-22-2017, 09:00 AM	#11
battery1882 Zilvia Addict Join Date: Jan 2005 Location: Fullerton, CA Age: 43 Posts: 702 Trader Rating: (13) Feedback Score: 13 reviews	cheaper route is ISR megaphone, or anything that has a proper muffler.

03-22-2017, 10:01 AM	#12
krron Join Date: Aug 2013 Location: Florida Age: 34 Posts: 18 Trader Rating: (0) Feedback Score: 0 reviews	I agree I have a HKS sport on my 14 with the rb25 and it is so quiet. Don't even have to worry about cops its great.

03-22-2017, 11:30 AM	#13
Loufig Leaky Injector Join Date: Jul 2014 Location: Indiana Age: 49 Posts: 66 Trader Rating: (0) Feedback Score: 0 reviews	HKS sport +1

03-22-2017, 11:53 AM	#14
Feast Japan Zilvia Junkie Join Date: Aug 2009 Location: Canada & Japan Age: 46 Posts: 422 Trader Rating: (9) Feedback Score: 9 reviews	Ive run the Nismo on my old S15, very quiet and flowed very well. Second to that I also ran Silent hi-power HKS system on the S14. But with the HKS I had to make some changes to the acceleration map as it was robbing a bit of HP.

03-23-2017, 12:42 AM	#16
grudge Zilvia Member Join Date: Jun 2005 Location: san diego Posts: 152 Trader Rating: (2) Feedback Score: 2 reviews	+1 for Apexi noir

03-23-2017, 07:36 AM	#19
Jorgs_7 Zilvia Junkie Join Date: Sep 2015 Location: Plymouth MN Posts: 406 Trader Rating: (1) Feedback Score: 1 reviews	Blitz Realize TT So quiet that I sold it for a ebay 3" set up. Exhaust manifold makes a big difference with SR sounds too