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SKU: POR.991GT3.CMBC
Fabspeed Porsche 991 GT3 / GT3 RS Center Muffler Bypass Pipe (2014-2016)
This direct-fit center muffler bypass pipe replaces the OEM muffler on 2014-2016 Porsche 991 GT3 and GT3 RS models. It delivers improved exhaust flow, 10 pounds of weight savings from the rear, and an aggressive blended sound from the innovative talk-pipe design that merges right and left cylinder exhaust. The simplified two-bolt mounting ensures straightforward installation while retaining full OEM valve control and Sport Mode functionality.
Key Features
- Precise Fitment: Designed for all 2014+ Porsche 991 GT3 and GT3 RS vehicles, works seamlessly with factory headers, catalytic converters, and side mufflers
- Weight Reduction: Saves 10 lbs compared to stock muffler for better rear-end balance and performance
- Sound Enhancement: Talk-pipe technology creates smooth, blended exhaust tone with aggressive character, retains OEM valve system for adjustable sound levels
- Material Quality: Built from 14-16 gauge T304 stainless steel for durability and corrosion resistance
- Upgrade Compatibility: Integrates with full Fabspeed GT3 performance parts lineup and includes 4-inch deluxe dual-style tips in polished, satin black, or diamond black finish options
Product Notes
- Retains factory Sport Mode control button functionality when paired with OEM side mufflers
- Backed by Fabspeed Lifetime Warranty on all performance products
- Ships securely packaged to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Two-bolt mounting system simplifies swap over OEM muffler
- Compatible with factory hardware, no additional modifications required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2016 | Porsche | 911 | GT3 (991) |
| 2016 | Porsche | 911 | GT3 RS (991) |
Why Choose Fabspeed?
- Engineered in the USA with decades of Porsche exhaust expertise
- T304 stainless steel construction ensures long-term performance and fit
- Lifetime warranty covers defects in materials and workmanship
Frequently Asked Questions
-
Q: Will this fit my 2015 Porsche 991 GT3 with factory exhaust?
A: Yes, it bolts directly to 2014-2016 GT3 models using OEM headers, cats, and side mufflers while keeping valve control intact -
Q: What finishes are available for the tips?
A: 4-inch deluxe dual tips offered in polished stainless, satin black ceramic, or diamond black finishes -
Q: Does the warranty cover installation issues?
A: Fabspeed Lifetime Warranty applies to manufacturing defects. professional installation advised to maintain coverage
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Custom boxed with protective padding, dimensions 48 x 12 x 12 inches
- Weight: 15 lbs shipping weight (product 9.5 lbs)
Fabspeed
Fabspeed Motorsport is a Pennsylvania-based performance parts manufacturer that specializes in exhaust systems, sport catalytic converters, headers, downpipes, intake systems, and carbon fiber components engineered specifically for exotic and high-performance European sports cars including Porsche, Ferrari, Lamborghini, McLaren, BMW M, and Audi R8. Every Fabspeed product is TIG-welded from aerospace-grade stainless steel or titanium in the USA, dyno-tested for measurable power and sound improvement, and designed as a direct bolt-on replacement that preserves the factory catalytic converter monitoring system or provides an explicit sport cat solution for emissions-compliant upgrades. Exotic car owners who have already maximized software and cosmetic modifications choose Fabspeed exhaust systems because the brand's specialty focus on a narrow range of platforms produces fit quality and sound character that universal exhaust manufacturers cannot achieve. The brand's XperTune ECU calibr...
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Shop Porsche parts and accessories at Black Ops Auto Works for 911, Cayman, Boxster, Macan, Cayenne, Panamera, 718, 996, 997, 991, 992, 986, 987, 981, 982, 964, 993, 944 Turbo, GT3, GT3 RS, GT4, Turbo, Carrera, and performance Porsche builds. This collection includes exhaust systems, muffler bypass pipes, sport cats, downpipes, suspension upgrades, coilovers, sway bars, shocks, struts, brake pads, brake rotors, caliper rebuild kits, carbon fiber exterior parts, intake systems, air filters, cooling parts, wheel spacers, wheel bolts, drivetrain upgrades, engine parts, valve guides, fuel injectors, and Porsche styling accessories. Use this Porsche collection to find the right upgrade by model, chassis code, product category, brand, and driving goal. Exhaust and intake upgrades help improve sound and airflow, brake upgrades support stronger stopping power, suspension parts improve handling and ride control, carbon fiber parts add lightweight styling, cooling parts support demanding driv...
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