Spec D Exhaust - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Darklance113 · 02-13-2019, 02:09 PM

Hey guys I'm sort of new to this forum. I recently just did my first mod to my 2013 BRZ which was putting in the Spec D exhaust system. With this new exhaust law I'm sort of paranoid driving it around because going from a stock and a super loud exhaust which is similar to the N1 exhaust is huge. I tested the sound decibal on the car and it was from 70-85. Cold start is insanely loud as I try to pull out of neighborhood ASAP. When I got the exhaust system it came with a resonator delete. If I were to tune down the volume how do I go about it. Will putting on silencer help? Maybe taking my stock resonator on the mid pipe and welding that back on? There is a lot of droning in the cabin. Here is a video after the install.

norcalpb · 02-13-2019, 02:11 PM

A resonator will add bass but won’t affect volume.

Probably best to post it for sale, and use the proceeds towards an exhaust with a bigger muffler.

Edit: this car is meant to bring joy, self-conciousness is unacceptable.

RToyo86 · 02-13-2019, 02:28 PM

Adding the silencers should help a little bit, but not a night/day difference. The resonated version of that exhaust still drones, it's the nature of the muffler design being similar to the N1.

Cheap exhausts have their own compromises. You'd be better off sourcing a different catback if drone is a problem for you.

Summerwolf · 02-13-2019, 02:49 PM

Maybe upgrade to the stock stuff you just took off?

Look elsewhere for enjoyable upgrades.

J1Avs · 02-13-2019, 03:25 PM

Order the CSG Touring86 Exhaust. @CSGMike has stated that it meets the new CA dB restrictions. High quality piece, and no worry on sound. Sure you have to spend the money, but you get what you pay for.

https://www.counterspacegarage.com/c...tition-exhaust

Other good option would be Perrin’s 2.5” Resonated CBE.

02-13-2019, 02:09 PM	#1
Darklance113 Member Join Date: Feb 2019 Drives: BRZ Location: Sacramento Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Spec D Exhaust Hey guys I'm sort of new to this forum. I recently just did my first mod to my 2013 BRZ which was putting in the Spec D exhaust system. With this new exhaust law I'm sort of paranoid driving it around because going from a stock and a super loud exhaust which is similar to the N1 exhaust is huge. I tested the sound decibal on the car and it was from 70-85. Cold start is insanely loud as I try to pull out of neighborhood ASAP. When I got the exhaust system it came with a resonator delete. If I were to tune down the volume how do I go about it. Will putting on silencer help? Maybe taking my stock resonator on the mid pipe and welding that back on? There is a lot of droning in the cabin. Here is a video after the install.

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02-13-2019, 02:11 PM	#2
norcalpb Senior Member Join Date: Oct 2013 Drives: 2013 BRZ, 2023 Model 3 Location: SF Bay Area Posts: 2,296 Thanks: 1,212 Thanked 861 Times in 570 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	A resonator will add bass but won’t affect volume. Probably best to post it for sale, and use the proceeds towards an exhaust with a bigger muffler. Edit: this car is meant to bring joy, self-conciousness is unacceptable.

02-13-2019, 02:28 PM	#3
RToyo86 Senior Member Join Date: Mar 2018 Drives: 17 Asphalt 86 Location: Ottawa Posts: 2,163 Thanks: 1,706 Thanked 2,195 Times in 1,124 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Adding the silencers should help a little bit, but not a night/day difference. The resonated version of that exhaust still drones, it's the nature of the muffler design being similar to the N1. Cheap exhausts have their own compromises. You'd be better off sourcing a different catback if drone is a problem for you.

02-13-2019, 02:49 PM	#4
Summerwolf Panda Trueno Join Date: Jan 2015 Drives: No twin now. Location: North Indiana Posts: 3,347 Thanks: 2,113 Thanked 2,407 Times in 1,332 Posts Mentioned: 17 Post(s) Tagged: 2 Thread(s)	Maybe upgrade to the stock stuff you just took off? Look elsewhere for enjoyable upgrades.

02-13-2019, 03:25 PM	#5
J1Avs Senior Member Join Date: Apr 2018 Drives: 2018 BRZ tS Location: Northern VA Posts: 396 Thanks: 239 Thanked 232 Times in 125 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Order the CSG Touring86 Exhaust. @CSGMike has stated that it meets the new CA dB restrictions. High quality piece, and no worry on sound. Sure you have to spend the money, but you get what you pay for. https://www.counterspacegarage.com/c...tition-exhaust Other good option would be Perrin’s 2.5” Resonated CBE.

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