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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 02-28-2022, 07:47 AM   #1
sygfrid
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[For reference] Measured: STi Performance Muffler (Low Back Pressure)

I've taken some measurements of the STi Performance Muffler for ZC for reference. I'll try to update it later on.

Part# ST44300AS020 (for 2017-21)



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Old 03-11-2022, 11:36 PM   #2
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That's nice. Now if I can only get one without selling a kidney.
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Old 03-12-2022, 03:41 AM   #3
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Remember the hangers to prevent drone!
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Old 03-16-2022, 05:23 AM   #4
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Quote:
Originally Posted by gpvecchi View Post
Remember the hangers to prevent drone!
Done! Only 2 that came with were installed though & the other 2 were stock. Thanks to you on your prev. post, I had to ensure that the STI hangers were included.
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Modding for daily fun & efficiency: Gruppe-S UEL, HKS dual res. FP, STi Per. Muffler, Delicious T. Ecutek tune, Crawford BPB, Grimmspeed CAI, STi Flex T. Bar, TRD Door Stabilizer, DSS aluminum propeller shaft, Verus diffuser & underbody covers, Verus LCA, Perrin bushings, Bilstein B6+RCE Yellows, Michelin PS4S + 18" WedsSport TC105X-summer, Michelin Alpin PA4 +18" Motegi MR140-winter

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Old 03-16-2022, 05:27 AM   #5
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Cold start sound levels measured: Ecutek-tuned STi Performance Muffler with Gruppe-S UEL, HKS dual resonator front pipe, & stock mid pipe. Ambient temp was around 5°C & the BRZ had been parked for 2 days.

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Old 03-16-2022, 04:52 PM   #6
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It's still the best sounding exhaust IMO.
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Old 03-17-2022, 08:50 AM   #7
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Quote:
Originally Posted by gpvecchi View Post
It's still the best sounding exhaust IMO.
I especially love the low-rumble. The sound is very matured, classy, & subtle yet sporty unlike most that sound like tin cans trying to catch attention.
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