Exhaust cutout with a large muffler - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Rya6822 · 09-15-2022, 02:03 AM

Hey all. I’m planning on getting some catless headers soon to improve the torque dip (and that subie rumble :o) but I still want to keep it quieter sometimes. I started looking into electronic valves and I loved the idea to have a stock-ish sounding car and flip a switch to a more aggressive exhaust sound.

I was thinking about how it would set up and how to modify my current cat back exhaust and thought about throwing the valve on right after the resonator and have one side of the valve go straight out the back left exhaust tip and have the other side of the valve to go through an aftermarket muffler and out the right side exhaust tip. If anyone has any experience with a cutout or any information I would absolutely love to hear it

In the drawing orange=valve and purple=muffler

soundman98 · 09-15-2022, 02:38 AM

Should work. Just be sure to keep the valve as a separate bolt-on part.

I've talked to a number of people with custom cars at car shows with the electric valves(trying to figure out which brand was best), and they all say they burn up pretty quickly from the exhaust heat, so they all just planned to replace as needed to maintain the 2 exhaust options

PetrolioBenzina · 09-15-2022, 01:38 PM

How did you blow up at 30k?

Grady · 09-15-2022, 05:47 PM

It’s doable, I did it. I had 2 Nameless axle backs. One with mufflers and one without. Combined them both into one.

09-15-2022, 02:03 AM	#1
Rya6822 Junior Member Join Date: Oct 2021 Drives: Silver Scion FRS - Blown motor @30k Location: Oregon Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Exhaust cutout with a large muffler Hey all. I’m planning on getting some catless headers soon to improve the torque dip (and that subie rumble :o) but I still want to keep it quieter sometimes. I started looking into electronic valves and I loved the idea to have a stock-ish sounding car and flip a switch to a more aggressive exhaust sound. I was thinking about how it would set up and how to modify my current cat back exhaust and thought about throwing the valve on right after the resonator and have one side of the valve go straight out the back left exhaust tip and have the other side of the valve to go through an aftermarket muffler and out the right side exhaust tip. If anyone has any experience with a cutout or any information I would absolutely love to hear it In the drawing orange=valve and purple=muffler Attached Images

09-15-2022, 02:38 AM	#2
soundman98 ProCrastinationConsultant Join Date: Sep 2013 Drives: '14 Ranger, '18 Tacoma 4Dr LB Location: chicago-ish Posts: 11,330 Thanks: 35,240 Thanked 13,675 Times in 6,782 Posts Mentioned: 98 Post(s) Tagged: 0 Thread(s)	Should work. Just be sure to keep the valve as a separate bolt-on part. I've talked to a number of people with custom cars at car shows with the electric valves(trying to figure out which brand was best), and they all say they burn up pretty quickly from the exhaust heat, so they all just planned to replace as needed to maintain the 2 exhaust options __________________ "The time you enjoy wasting is not wasted time"

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Anyone done a exhaust cutout?	FinallyGot	Engine, Exhaust, Transmission	2	09-08-2019 04:56 AM
Electric Exhaust Cutout = Loud as %$#@	M-17	Engine, Exhaust, Transmission	44	05-05-2019 06:59 PM
Welding an Exhaust Cutout	Asian	Engine, Exhaust, Transmission	17	01-03-2018 05:33 PM
Berk Muffler Delete + OFH = Too Loud. Considering Electric Cutout	JM197	Engine, Exhaust, Transmission	7	12-30-2015 11:03 AM
3" large rear muffler options	Manji	Engine, Exhaust, Transmission	1	03-08-2015 04:01 AM

09-15-2022, 01:38 PM	#3
PetrolioBenzina Senior Member Join Date: Sep 2016 Drives: 17 86 Location: Oregon Posts: 1,671 Thanks: 75 Thanked 1,133 Times in 647 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	How did you blow up at 30k?

User Name		Remember Me?
Password