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Fabspeed - Porsche 911 Carrera Muffler Bypass Pipe with Adjustable Turndown (1976-1989)

Marsoni M251S
Sale price$179.84
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Fabspeed - Porsche 911 Carrera Muffler Bypass Pipe with Adjustable Turndown (1976-1989)Reduce weight, increase power, and improve sound with a 911 SC 3. 2 Carrera muffler bypass pipe for both the primary cigar shaped 911 muffler. Includes adjustable 90 degree turndown tip for exhaust volume control. FEATURES: Fits all Porsche 911 vehicles worldwide 1976 1989 Catback emissions street legal in all 50 sates. Very aggressive CUP car sound. Recommended for aggressive street and Track Use ONLY! Adds 10+ whp 8+ ft lbs of tq and improved
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4.2 ★★★★★
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Verified Purchase
Kenny
Omaha, US
★★★★★ 3
Incorrect motor listed. Far smaller impeller than what's in the 6 horse johnson.
Size: For 5.5HP 6HP 7.5HP
It seems to be of good quality. However it does not fit a 6 horse johnson as it states. Therefore it will not pump water or function for my purposes. It was a waste of money.
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Reviewed in the United States on October 15, 2025
O
Verified Purchase
Outcast
San Leandro, US
★★★★★ 5
Good product
Worked for what I needed. Fit great and easy to install.
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Reviewed in the United States on March 24, 2026
R
Verified Purchase
R
Charlottesville, US
★★★★★ 5
Old Merc Inline 6s - 1500, 1400, 1250, 1150
This is the second time I purchased from them. The kits are good quality, and impeller is durable. Pictures is the initial one I purchased from them two seasons ago. It had hundreds of hours on it, plus me accidentally cooking it for 3 mins without water hooked up to the engine - which is why I purchased it again. Given 2 seasons of use and my recent screw up it held up well.
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Reviewed in the United States on August 11, 2024
J
Verified Purchase
Justin D.
Cuba, US
★★★★★ 4
Merc black max 150
Good fit
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Reviewed in the United States on October 16, 2024
R
Verified Purchase
Rob
Omaha, US
★★★★★ 5
Best bang for your buck kit!
Can’t beat the price by any means. Total rebuild kit for Mercury 115 outboard for less than half the price and all high quality parts nothing cheap about this kit at all except the price. Highly recommend
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Reviewed in the United States on March 30, 2024

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