Toyota GR86, 86, FR-S and Subaru BRZ Forum - FT86CLUB

Toyota GR86, 86, FR-S and Subaru BRZ Forum - FT86CLUB (
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-   -   Aftermarket exhaust and aerodynamics (

Lonergt 07-12-2013 09:59 PM

Aftermarket exhaust and aerodynamics
I'm interested in getting the nameless axleback exhaust, but I have a question about the effects it will have on the aerodynamics the car. The stock muffler was designed to decrease lift in the rear of the car. Will replacing this muffler cause the bumper to act as a mini parachute, increasing the coefficient of drag, or worsening the handling characteristics of the car.

velin86 07-12-2013 10:02 PM

Not in any noticeable fashion no.

Grip Ronin 07-12-2013 11:07 PM

if you dont have another suitcase style muffler yes it will disrupt your aero. you wont notice it with normal driving but should become more pronounced as speed increases. you could make a diffuser plate to cover the gap though

Lonergt 07-13-2013 08:12 AM

Has anyone made a diffuser plate for a non-suitcase style muffler. Pics?

arghx7 07-13-2013 08:54 AM

Would you notice it in a wind tunnel test? Probably. Would you be able to tell a difference in the real world? Probably not.

enjoi23 07-13-2013 04:50 PM

A Guy Made A Custom Diffuser..I'm Not Sure If It Helps Aerodynamics, But It Looks Like It.

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