Fabspeed Porsche 911 Carrera RSR Header Muffler Kit (1976-1989)

Fabspeed Porsche 911 Carrera RSR Header Muffler Kit (1976-1989)

Marsoni

M251S

$2418.47

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

Fabspeed Porsche 911 Carrera RSR Header Muffler Kit (1976-1989)SKU: POR. 911. RSRWH32 Fabspeed Porsche 911 Carrera RSR Header Muffler Kit (1976 1989) This complete headers back exhaust system delivers loud aggressive CUP car sound with dual outlets for 1976 1989 Porsche 911 Carrera models. Free flowing RSR long tube headers flow into the Maxflo performance muffler for huge volume increase over stock. Dyno testing shows peak curve gains of 17 whp and 13 ft lbs torque at 3900 RPM plus maximum gains of 12 whp and 11

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Got this to replace cabin air filter on 2020 Honda Civic Sport, as it said it was a direct fit… It does fit but not perfectly! Holding it next to the filter you can see the size difference, with the original being slightly longer. I noticed a whistling sound from the AC at full blast right after install. I believe this noise is caused by the small gap left in the retainer box with the slightly smaller filter. Luckily it is not incredibly loud, but it’s still there. The quality of filtration seems to be much better than stock filter, but the fitment not exact for vehicles mentioned above.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 17, 2026

Verified Purchase

Bon43

Lexington, US

★★★★★ 5

Awesome

Easy to install. Fit appropriately. Value for the money for sure.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on September 26, 2025