Click to zoom in
SKU: POR.991.CMBXV
Fabspeed Porsche 991 Carrera Valvetronic Center Muffler Bypass X-Pipe (Valved Exhaust Only) (2012-2016)
The Fabspeed Valvetronic Center Muffler Bypass X-Pipe fits 2012-2016 Porsche 991 Carrera models equipped with factory valved exhaust systems. This T304L stainless steel X-pipe replaces the heavy stock center muffler to deliver better exhaust flow increased power up to 8 RWHP and 10 RWTQ and a 14 lb weight reduction. It maintains full OEM valve functionality for quiet highway driving or aggressive track sound.
Key Features
- Valvetronic Technology: Preserves factory valve control allowing driver-selected quiet or sport exhaust modes without modifications
- X-Pipe Design: Merges exhaust pulses for improved scavenging enhanced mid-range torque and smoother power delivery
- T304L Stainless Steel: Mandrel-bent for precise fit corrosion resistance and long-lasting durability
- Weight Savings: Reduces 14 lbs compared to stock center muffler improving handling and acceleration
- Bolt-On Fitment: Direct replacement using factory hangers and connections for easy installation
Product Notes
- Requires factory valved center section valve controller available separately for non-valved cars
- Pairs with factory side mufflers or Fabspeed Valvetronic Exhaust System for complete sound upgrade
- Install instructions available for Homelink valve control integration
Installation Notes
- Professional installation recommended.
- Bolt-on process takes 30-45 minutes uses existing factory hardware
- Compatible with OEM mid-pipes and hangers no welding or cutting required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2012-2016 | Porsche | 911 | Carrera |
| 2012-2016 | Porsche | 911 | Carrera S |
Why Choose Fabspeed?
- 25+ years crafting Porsche-specific exhaust systems in the USA
- Dyno-proven gains with every component tested on 991 platforms
- Lifetime warranty on welds and structural integrity
Frequently Asked Questions
-
Q: Will this fit 991 GTS or Turbo models?
A: Designed exclusively for 991 Carrera and Carrera S with factory valved exhaust check your mid-pipe for valves -
Q: What materials are used in construction?
A: Fully mandrel-bent T304L stainless steel for maximum strength heat resistance and mirror-polished finish -
Q: What warranty coverage applies?
A: Lifetime warranty against manufacturing defects on welds and material covers normal use
Shipping & Handling
- Method: UPS or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed dimensions 48 x 12 x 12 inches
- Weight: 9 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...
View Fabspeed Products
Porsche Parts & Accessories
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...
View Porsche Parts & Accessories ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
Ralph J.
RHO Small Grille Badge
Looks as good as it fits
Looks as good as it fits,
zachary d.
Seibon 70-73 Datsun 240Z OE Carbon Fiber Hood
Nothing like it
I love it great sound and response
Luis P.
Legmaker Dodge Durango HEMI Short Ram CAI 2011-Present 5.7L
Car totally diferent with the whole kit
Car totally diferent with the whole kit. Ive stood next to wide bodies and my car gets more attention at times . Ive bought the kit twice already.
Ding D.
2015-2023 Dodge Charger Carbon Fiber Wind Splitters
Fantastic emblem! Exactly what I was looking for
Fantastic emblem! Exactly what I was looking for. Great quality emblem.
Jacobus S.
Direct Connection Black Metallic Fender Badge
Worked great for my aftermarket hood on my Chrysler 2023 300C
Worked great for my aftermarket hood on my Chrysler 2023 300C. Thanks
Robert G.
Windshield Washer Squirter Relocation Kit Universal
Easy to install and makes car sound even better
Easy to install and makes car sound even better love the winn
Tracy H.
Legmaker Challenger/Charger Hellcat Demon & Redeye Air Intake
Awesome customer support
Awesome customer support. Had multiple issues with fedex and these guys were excellent in helping me sort everything out. The drop springs are great too! I highly recommend
Anonymous
Swift Spec-R Lowering springs Jeep Grand Cherokee 2011-2021
100/100! perfect CF crafted cold air intake for 6
100/100! perfect CF crafted cold air intake for 6.4 jeep .. even makes my AWE exhaust sound even deeper and you cam here this thing sucking when accelerating even at normal speeds🥶
srt.boizzz
Legmaker 392 TH Short Ram Jeep Grand Cherokee SRT 2012-2021
