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


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Old 10-19-2018, 06:41 PM   #15
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Question is do I need to have to do a tune revision when I switch back onto stock catback while still running ACE header and flex fuel kit?
Not needed!
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Old 10-19-2018, 06:41 PM   #16
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+1 It's fine and probably the best power/volume ratio out there.


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Old 10-20-2018, 02:33 AM   #17
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I’m running a catted UEL header with aftermarket over pipe and a catless dual resonated front pipe with the stock cat back currently on a stage 2 tune. I like the quiet but do wish it was a bit louder.
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Old 10-20-2018, 11:35 PM   #18
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Iím running a catted UEL header with aftermarket over pipe and a catless dual resonated front pipe with the stock cat back currently on a stage 2 tune. I like the quiet but do wish it was a bit louder.
How much louder do you want to be?
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Old 10-20-2018, 11:55 PM   #19
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Iím running the ace a350 and ace front pipe with stock catback. Itís pretty quiet but buzzes and sounds like crap at certain rpms


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Old 10-21-2018, 01:25 AM   #20
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I'm probably the only guy running a Borla EL with the stock exhaust. I like the sound. A bit more revvy.
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Old 10-21-2018, 03:20 AM   #21
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How much louder do you want to be?
I like the low subi rumble that a N1 has but hate the loud drone after the RPMís get around 3k.
If they made something that gave me both the low rumble but quieter at higher revs I probably would get it. Asking for a lot I know. Lol
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Old 10-21-2018, 05:57 AM   #22
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I like the low subi rumble that a N1 has but hate the loud drone after the RPMís get around 3k.
If they made something that gave me both the low rumble but quieter at higher revs I probably would get it. Asking for a lot I know. Lol
It's not. Check out the Touring86.
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Old 10-21-2018, 08:25 AM   #23
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Iím running the ace a350 and ace front pipe with stock catback. Itís pretty quiet but buzzes and sounds like crap at certain rpms


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Did you hammer down your skid plate? Ace headers rub that. It may look like it has 1/2Ē clearance but under load engine shifts and header rubs. If itís happened awhile you should see rub marks on header and skid plate and know exactly where to hammer out.
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Old 10-21-2018, 08:54 AM   #24
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Also running an aftermarket header, stock catback. Turbo is going on with stock catback as well. If you enjoy the car, who cares if you lose a pissing match on a dyno sheet? Put the money you've saved into an oil cooler or tires
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Old 10-21-2018, 02:31 PM   #25
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I’m just surprised how quiet the car is now with the stock catback. I know it’ll be quieter than before but this is almost exactly stock-quiet. Doesn’t header by itself make the car louder? I’m not complaining just curious.
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Old 10-21-2018, 03:20 PM   #26
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Gruppe-S UEL headers + overpipe, little more rumble but more or less OEM like, and when you thrash it (depends also from your map) it has the nice boxer sound!
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Old 10-21-2018, 05:47 PM   #27
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Anyone runs aftermarket header with stock catback?

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Originally Posted by 86TOYO2k17 View Post
Did you hammer down your skid plate? Ace headers rub that. It may look like it has 1/2Ē clearance but under load engine shifts and header rubs. If itís happened awhile you should see rub marks on header and skid plate and know exactly where to hammer out.


Yea Iíve hammered my skid plate in a few spots also have Cusco motor mounts.

The buzzing is from the stock catback since Iíve full catless with no resonator in the front pipe.



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Old 10-21-2018, 06:53 PM   #28
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Yea Iíve hammered my skid plate in a few spots also have Cusco motor mounts.

The buzzing is from the stock catback since Iíve full catless with no resonator in the front pipe.



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I ran ace, with hks FP, and stock exhaust. It didnít really buzz. But personally I thought it sounded bad. Hard to explain something just sounded off. So I got the CSG touring86 didnít make it louder but deepend and crispened up the sound. Now it sounds right. Just my opinion and experience.
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