Sale

Exhaust› Mufflers and Resonators

Fabspeed Motorsport

Muffler Bypass Pipe

$367.82 $350.95 Save $16.87

SKU: FS.POR.911.MB

In Stock
In Stock
Ships by Nov 13
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Fabspeed Motorsport Muffler Bypass Pipe is an exhaust component designed for the Porsche 911 Carrera (1976-1989). It bypasses the muffler to enhance exhaust flow.
Show original supplier description
The Fabspeed Motorsport Muffler Bypass Pipe is engineered to optimize exhaust flow for the Porsche 911 Carrera models from 1976 to 1989. This bypass pipe replaces the stock muffler section, allowing exhaust gases to exit more freely. Its installation aims to improve exhaust sound and performance. Installation of this component may alter the vehicle's exhaust note, often resulting in a more aggressive tone. The product is designed as a cat-back emissions component.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFabspeed Motorsport
Part NumberFS.POR.911.MB
CategoryExhaust

Videos

Why Fabspeed Won't Install Cat Bypass Pipes | Keeping the World Clean and Green

Why Fabspeed Won't Install Cat Bypass Pipes | Keeping the World Clean and Green
Porsche 991 Carrera without PSE | Stock Exhaust vs Center Muffler Bypass X-Pipe | Sound Comparison

Porsche 991 Carrera without PSE | Stock Exhaust vs Center Muffler Bypass X-Pipe | Sound Comparison
Porsche 911 Muffler Bypass Sound Comparison - Fabspeed Bypass Pipes Vs Standard Mufflers

Porsche 911 Muffler Bypass Sound Comparison - Fabspeed Bypass Pipes Vs Standard Mufflers
1985 Porsche 911 3.2 Carrera Fabspeed Muffler Delete - POV, Drive By, Install

1985 Porsche 911 3.2 Carrera Fabspeed Muffler Delete - POV, Drive By, Install
Porsche Carrera 992 (2019+) | Fabspeed Exhaust Comparison

Porsche Carrera 992 (2019+) | Fabspeed Exhaust Comparison
Porsche 991 Carrera S (2012-2016) | Fabspeed Primary Muffler Bypass X-Pipe | Revs Pulls and Dyno

Porsche 991 Carrera S (2012-2016) | Fabspeed Primary Muffler Bypass X-Pipe | Revs Pulls and Dyno
Porsche 996 Carrera (1999-2004) | Fabspeed Muffler Bypass Pipe | Revs and Pulls

Porsche 996 Carrera (1999-2004) | Fabspeed Muffler Bypass Pipe | Revs and Pulls
Porsche 997.2 Carrera (2009-2011) | Fabspeed Center Muffler Bypass X-Pipe | Overview

Porsche 997.2 Carrera (2009-2011) | Fabspeed Center Muffler Bypass X-Pipe | Overview
Porsche 996/997 911 Carrera (1999-2008) | Factory Exhaust Explained | How To Unlock POWER and SOUND

Porsche 996/997 911 Carrera (1999-2008) | Factory Exhaust Explained | How To Unlock POWER and SOUND
Porsche 997.2 Carrera S with Fabspeed Muffler Bypass Pipes

Porsche 997.2 Carrera S with Fabspeed Muffler Bypass Pipes

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy