Click to zoom in
SKU: POR.911.MB
Fabspeed Porsche 911 Carrera Muffler Bypass Pipe with Adjustable Turndown (1976-1989)
This Fabspeed muffler bypass pipe replaces the primary cigar-shaped OEM muffler on Porsche 911 models from 1976 to 1989. It delivers 10+ whp and 8+ ft/lbs torque gains with sharper throttle response and 18-20 lbs weight reduction. The adjustable 90-degree turndown tip controls exhaust volume for track or street driving.
Key Features
- Power Gains: Adds 10+ whp and 8+ ft/lbs torque plus improved throttle response for quicker acceleration
- Sound Profile: Produces very aggressive CUP car exhaust note ideal for aggressive street and track use
- Construction: Built from 14-16 gauge T304 CNC mandrel-bent stainless steel for durability and perfect fit
- Weight Reduction: Saves 18-20 lbs depending on tip option compared to heavy OEM muffler
- Street Legal Design: Catback system legal in all 50 states works with stock cats or Fabspeed catbypass pipes
Product Notes
- Recommended for aggressive street and track use only due to loud exhaust sound
- Direct OEM replacement includes outlet pipe clamp and slip-on adjustable turndown tip
- Easy on and off installation suits weekend track events
Installation Notes
- Professional installation recommended.
- Bolt-on design requires no cutting or welding
- Compatible with factory hardware and Fabspeed catbypass pipes
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1976-1977 | Porsche | 911 | Carrera 3.0L |
| 1978-1983 | Porsche | 911 | SC 3.0L |
| 1984-1989 | Porsche | 911 | Carrera 3.2L |
Why Choose Fabspeed?
- Performance exhaust leader for Porsche vehicles worldwide
- T304 stainless steel construction ensures long-lasting performance
- Backed by Fabspeed Lifetime Warranty on all products
Frequently Asked Questions
-
Q: Does this fit all 1976-1989 Porsche 911 models?
A: Yes fits worldwide 911 Carrera SC and 3.2 Carrera with primary cigar-shaped muffler -
Q: What material is used in construction?
A: 14-16 gauge T304 stainless steel CNC mandrel bent for strength and corrosion resistance -
Q: What warranty applies?
A: All Fabspeed products including this muffler bypass carry Lifetime Warranty
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed dimensions 48 x 10 x 10 inches
- Weight: 12 lbs
Read More
Fabspeed
Shop Fabspeed Parts & Exhaust Systems Fabspeed Motorsport performance parts at Black Ops Auto Works. This collection features high-performance Fabspeed exhaust systems, sport catalytic converters, downpipes, headers, intake systems, and carbon fiber components engineered for maximum horsepower, improved exhaust flow, and aggressive sound. Fabspeed is known worldwide for producing aftermarket performance parts for Porsche, Ferrari, Lamborghini, McLaren, BMW, Audi, and other exotic and performance vehicles. Fabspeed Exhaust Systems, Headers & Performance Components Browse a full range of Fabspeed performance upgrades, including: Fabspeed cat-back exhaust systems Valvetronic exhaust systems and X-pipe exhaust setups Long tube headers and race headers Sport catalytic converters (HJS German cats) Cat bypass pipes and downpipes Performance intake systems and intake upgrades Exhaust tips and carbon fiber exhaust components Carbon fiber interior and exterior parts XperTune ECU tuni...
View Fabspeed Products
Porsche Parts & Accessories
Shop Performance Parts & Aftermarket Accessories for your Porsche Upgrade your vehicle with premium Porsche performance parts and aftermarket accessories from Black Ops Auto Works. This collection features high-quality Porsche exhaust systems, suspension upgrades, brake kits, intake systems, carbon fiber parts, and engine performance components designed to improve horsepower, handling, and overall driving performance. Whether you drive a Porsche 911, Cayman, Boxster, Macan, or Cayenne, our catalog is built for enthusiasts who demand precision engineering, OEM+ fitment, and track-ready performance. Porsche Parts from Top Performance Brands Shop industry-leading brands specializing in Porsche aftermarket performance parts, including: Fabspeed Motorsport exhaust systems, headers, and sport cats Akrapovič titanium exhaust systems Bilstein shocks, struts, and suspension kits KW Suspension and Öhlins coilover systems Eibach performance springs and suspension components APR Performanc...
View Porsche Parts & Accessories Products