Fabspeed 911 Turbo 930 Sport Muffler Bypass Exhaust System with Catalyst (1976-1989)

Fabspeed 911 Turbo 930 Sport Muffler Bypass Exhaust System with Catalyst (1976-1989)

Marsoni

M251S

$1268.97

Get it in 3 business days with 1 day shipping. Friday, May 29

Fabspeed 911 Turbo 930 Sport Muffler Bypass Exhaust System with Catalyst (1976-1989)SKU: POR. 911T. SCMBE Fabspeed 911 Turbo 930 Sport Muffler Bypass Exhaust System with Catalyst (1976 1989) This Fabspeed single outlet muffler bypass exhaust system replaces the factory muffler on Porsche 911 Turbo 930 models from 1976 to 1989. It features a high flow HJS sport catalytic converter for improved exhaust flow while maintaining emissions scrubbing to avoid check engine lights. Drivers gain noticeable increases in horsepower and torque

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Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly. Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration. Ended up running self tapping screws thru parts to complete assembly.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 26, 2024

Verified Purchase

Carl L. Bradley

New York, US

★★★★★ 1

Kinda flimsy…

Thought the assembly was metal, it’s some kind of PVC.

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Reviewed in the United States on September 22, 2025