Track Rat MUF Delete Feeler - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

KillerBMotorsport · 07-16-2022, 11:53 AM

For the Track-Rats out there, what do you think of a simple no-frills purpose-built muffler delete?

Track Rat Muffler Delete 2022 BRZ/FR-S/86

• 19.5 Pound Weight Savings!

• Single Outlet

• 304 Stainless Steel

• Full Diameter Free Flowing Mandel Bends

• 3/8” Thick CNC Laser Cut Flange

• Hand TIG Welded and Back-purged

• All Parts Made and Assembled in the USA

We've just made the one, and there's a dual tip Street-Rat version as well in the works. Estimated pricing ~$299.

As always, thanks for the feedback!!

Lonewolf · 07-17-2022, 01:04 AM

Any chance you can get some decibel readings? I don't have a second gen (thus a neutral party), but even the track guys might want to keep the noise down due to certain track restrictions (like Laguna Seca) and not piss off their neighbors.

ayoshioka1 · 07-17-2022, 05:01 AM

muffled version with a tip option would be nice.

Yoshoobaroo · 07-17-2022, 11:38 AM

Quote:

Originally Posted by Lonewolf

Any chance you can get some decibel readings? I don't have a second gen (thus a neutral party), but even the track guys might want to keep the noise down due to certain track restrictions (like Laguna Seca) and not piss off their neighbors.

Yea, look at AWE’s exhaust, even the ‘touring’ version hits 96dB. That’s already too loud for a lot of tracks.

Stonehorsw · 07-17-2022, 03:34 PM

May give it a shot.

KillerBMotorsport · 07-17-2022, 05:03 PM

We can get dB readings. There are some decent apps for that.

Anyone have the track dB measurement specs? That will usually be a distance and height from the exhaust tip.

KillerBMotorsport · 07-19-2022, 01:21 PM

Bump for track specific dB and measurement specs?

MacSpeed · 07-19-2022, 03:36 PM

How did you come up with 32# saved? The 22+ muffler only weights 22.5#. Is it made out of helium?

KillerBMotorsport · 07-19-2022, 06:09 PM

Quote:

Originally Posted by MacSpeed

How did you come up with 32# saved? The 22+ muffler only weights 22.5#. Is it made out of helium?

I looked at two threads where weight comparisons were made that showed the OEM weight. Maybe they were incorrect, or mislabeled as muffler when they meant more than that?

Next time the car is on the lift, I can pull it and weigh. Sorry on that!

MacSpeed · 07-19-2022, 09:56 PM

Quote:

Originally Posted by KillerBMotorsport

I looked at two threads where weight comparisons were made that showed the OEM weight. Maybe they were incorrect, or mislabeled as muffler when they meant more than that?

Next time the car is on the lift, I can pull it and weigh. Sorry on that!

All good. Full catback is ~35#, just the rear section is 22.5

OkieSnuffBox · 07-20-2022, 12:02 PM

Quote:

Originally Posted by KillerBMotorsport

We can get dB readings. There are some decent apps for that.

Anyone have the track dB measurement specs? That will usually be a distance and height from the exhaust tip.

https://www.counterspacegarage.com/b...a-sound-limit/

KillerBMotorsport · 07-20-2022, 05:57 PM

Quote:

Originally Posted by MacSpeed

All good. Full catback is ~35#, just the rear section is 22.5

Thanks! I'll tweak the post.

Quote:

Originally Posted by OkieSnuffBox

https://www.counterspacegarage.com/b...a-sound-limit/

Thank you. I'll see what I can do, but that list of stock cars that won't pass is very saddening

OkieSnuffBox · 07-21-2022, 12:42 PM

Quote:

Originally Posted by KillerBMotorsport

Thanks! I'll tweak the post.

Thank you. I'll see what I can do, but that list of stock cars that won't pass is very saddening

I fear Laguna is not long for this world based on all the NIMBY's.

Which just sucks that in America you can move next to a race track and then go "It should be shut down because it's too loud."

Well, like, maybe don't move next a f------- race track than?

KillerBMotorsport · 07-26-2022, 09:38 AM

Quote:

Originally Posted by OkieSnuffBox

I fear Laguna is not long for this world based on all the NIMBY's.

Which just sucks that in America you can move next to a race track and then go "It should be shut down because it's too loud."

Well, like, maybe don't move next a f------- race track than?

All to common. It's happening a lot unfortunately. Tracks that were built in the sticks and own a ton of space around them seem to be growing, even adding dirt tracks and drift tracks, but in the minority. Many more are struggling and closing

07-16-2022, 11:53 AM	#1
KillerBMotorsport Join Date: Apr 2021 Drives: BRZ Location: Virginia Posts: 568 Thanks: 89 Thanked 711 Times in 325 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	Track Rat MUF Delete Feeler For the Track-Rats out there, what do you think of a simple no-frills purpose-built muffler delete? *Track Rat Muffler Delete 2022 BRZ/FR-S/86* • 19.5 Pound Weight Savings! • Single Outlet • 304 Stainless Steel • Full Diameter Free Flowing Mandel Bends • 3/8” Thick CNC Laser Cut Flange • Hand TIG Welded and Back-purged • All Parts Made and Assembled in the USA We've just made the one, and there's a dual tip Street-Rat version as well in the works. Estimated pricing ~$299. As always, thanks for the feedback!! Last edited by KillerBMotorsport; 08-31-2022 at 09:58 AM.

07-17-2022, 05:01 AM	#3
ayoshioka1 Senior Member Join Date: Apr 2019 Drives: 2019 BRZ / E36 325is Location: Irvine CA Posts: 110 Thanks: 15 Thanked 61 Times in 41 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	muffled version with a tip option would be nice. __________________ 23 GR86 Halo MT Prem - Racecomp Engineering SS-2 - Sayber Designs - Voltex - RE71RS - Project Mu

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07-17-2022, 01:04 AM	#2
Lonewolf Senior Member Join Date: Dec 2011 Drives: Moped Location: CA Posts: 4,300 Thanks: 4,905 Thanked 2,132 Times in 1,195 Posts Mentioned: 21 Post(s) Tagged: 0 Thread(s)	Any chance you can get some decibel readings? I don't have a second gen (thus a neutral party), but even the track guys might want to keep the noise down due to certain track restrictions (like Laguna Seca) and not piss off their neighbors.

07-17-2022, 03:34 PM	#5
Stonehorsw Senior Member Join Date: Jul 2020 Drives: 18 Brz (Sold) / 22 BRZ Location: Michigan Posts: 671 Thanks: 1,137 Thanked 445 Times in 261 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	May give it a shot.

07-17-2022, 05:03 PM	#6
KillerBMotorsport Join Date: Apr 2021 Drives: BRZ Location: Virginia Posts: 568 Thanks: 89 Thanked 711 Times in 325 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	We can get dB readings. There are some decent apps for that. Anyone have the track dB measurement specs? That will usually be a distance and height from the exhaust tip.

07-19-2022, 01:21 PM	#7
KillerBMotorsport Join Date: Apr 2021 Drives: BRZ Location: Virginia Posts: 568 Thanks: 89 Thanked 711 Times in 325 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	Bump for track specific dB and measurement specs?

07-19-2022, 03:36 PM	#8
MacSpeed Senior Member Join Date: Sep 2021 Drives: 2022 BRZ Location: FL Posts: 135 Thanks: 71 Thanked 106 Times in 50 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	How did you come up with 32# saved? The 22+ muffler only weights 22.5#. Is it made out of helium?

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