TRD Exhaust owners?

[TommyW]

The TRD catback is an awesome exhaust. I loved mine until I installed headers then it was a little loud for me. IMO perfect without headers. Sounds awesome and race car-y with headers but I like a bit quieter note. I’m putting it up for sale this week.

[RToyo86]

Does anybody know or can confirm how the muffler is designed?
Does the muffler utilize packing material or anything that can heat cycle off over time?

Mainly curious as I am buying a used TRD catback shortly which has seen some mileage and do not want to buy a tin can.

[sygfrid]

I had the 2019 TRD SE catback + UEL on my previous FRS. It was drony on the highway above 3k rpms. We experimented on wrapping the midpipe with DEI Form-a-Shield that has a thick layer of heat insulation & we got the following:

*More quiet cabin -the thick insulation muffled the pipes
*Bassy notes - the insulation muffled the exhaust by absorbing more mid & high notes & left behind a nicer bass that didn't piss off the neighbour nor attract cops.
*No more drone at 3k rpms
*Cooler cabin




With sound:
https://photos.google.com/album/AF1Q...pEyqIgJbb6M7sX

[FrickingReallySlow]

Your images aren't showing up for us. Would like to see how you did your form a shield on the muffler/midpipe !!

Originally Posted by sygfrid

I had the 2019 TRD SE catback + UEL on my previous FRS. It was drony on the highway above 3k rpms. We experimented on wrapping the midpipe with DEI Form-a-Shield that has a thick layer of heat insulation & we got the following:

*More quiet cabin -the thick insulation muffled the pipes
*Bassy notes - the insulation muffled the exhaust by absorbing more mid & high notes & left behind a nicer bass that didn't piss off the neighbour nor attract cops.
*No more drone at 3k rpms
*Cooler cabin




With sound:
https://photos.google.com/album/AF1Q...pEyqIgJbb6M7sX

[sygfrid]

Originally Posted by FrickingReallySlow

Your images aren't showing up for us. Would like to see how you did your form a shield on the muffler/midpipe !!

Hmmm, interesting... I can see the images on here. I'm not sure if having it on Google Photos creates the viewing problem. Nevertheless, You can scroll it on IG: FT8syg. I have recently wrapped the Gruppe-S UEL as well with DEI Form-a-Shield to make the engine bay cooler while allowing the pipes to "breathe".

[jdemm]

Makes a great sound when accelerating but at mild throttle it is extremely droney. I was getting non stop headaches. Got a q300 to be able to think again. If you hate drone..stay away

[FrickingReallySlow]

Cool! where did you get your metal zipties for the form a shield?

Btw sorry to see your rouge go down like that, glad you didn't have a scratch after a T-bone and found a new brz!

Originally Posted by sygfrid

Hmmm, interesting... I can see the images on here. I'm not sure if having it on Google Photos creates the viewing problem. Nevertheless, You can scroll it on IG: FT8syg. I have recently wrapped the Gruppe-S UEL as well with DEI Form-a-Shield to make the engine bay cooler while allowing the pipes to "breathe".

[sygfrid]

Originally Posted by FrickingReallySlow

Cool! where did you get your metal zipties for the form a shield?

Btw sorry to see your rouge go down like that, glad you didn't have a scratch after a T-bone and found a new brz!

Thanks... Yeah, that's why I got another ft86 (BRZ) bec. it's gonna save my life again from such impact!

The metal zip ties should be available in Home Depot. I got mine from Canadian Tire. However, if you're feeling lazy to go out & want more options, you can always check AMAZON. I got the package that has the metal zip ties & the cable gun tie that tightens & locks it https://www.amazon.com/Aigreat-Stain...546402&sr=8-10

[Bigmeanbeast]

I just wanted to include my 2 cents in saying that the TRD exhaust is manufactured by Gibson, or at least uses a Gibson resonator as I can see the word "Gibson" stamped on it. It's a high quality piece, well designed, and sounds nice. I have a Berk test pipe that eliminates the secondary cat (stock header) and it's pretty loud now, but manageable. The test pipe added some higher frequencies for sure, but not offensive. With a catless header it would be nuts, and I would consider going to a resonated test pipe.

[fiveoneoh]

I just installed this puppy and it's got the really bad drone everyone talks about. Any suggestions on reducing (or eliminating) it? Happens at about 25-35 mph and 2-3k rpm.


Otherwise I really like everything else about it, it sounds good and it's not obnoxiously loud. Plus, D shaped tips.

[weederr33]

Originally Posted by fiveoneoh

I just installed this puppy and it's got the really bad drone everyone talks about. Any suggestions on reducing (or eliminating) it? Happens at about 25-35 mph and 2-3k rpm.


Otherwise I really like everything else about it, it sounds good and it's not obnoxiously loud. Plus, D shaped tips.

Is the rest of your exhaust stock? No headers or front pipe?

[fiveoneoh]

Originally Posted by weederr33

Is the rest of your exhaust stock? No headers or front pipe?

Yup it's all stock otherwise.



Also, I don't think it's lose bolts b/c everything was tightened to spec.

[NLSP]

Originally Posted by fiveoneoh

I just installed this puppy and it's got the really bad drone everyone talks about. Any suggestions on reducing (or eliminating) it? Happens at about 25-35 mph and 2-3k rpm.

I recently replaced the mid-pipe resonator with a Vibrant Performance Ultra Quiet resonator (part # 1140 for the 2.25" inlet/outlet). Got rid of 95% of the drone, much more easy to live with now.

[fiveoneoh]

Originally Posted by NLSP

I recently replaced the mid-pipe resonator with a Vibrant Performance Ultra Quiet resonator (part # 1140 for the 2.25" inlet/outlet). Got rid of 95% of the drone, much more easy to live with now.

Thanks for the tip (ha!), I will check it out. So you no longer have that low frequency hum when driving on city streets? I noticed it's from about 25-35 mph and reduces a bit when I shift into 4th. Ideally would like to stay in 3rd at these speeds.