aFe is proud to introduce the aFe MACH force-Xp cat-back exhaust system for the 2005-2008 Porsche Boxster/S and 2006-2008 Cayman/S (987.1). In recent testing with the aFe dual tip assembly, this exhaust system resulted in a max gain of 29 horsepower and 40 lbs. x ft. of torque. aFe spent countless hours of R& D to develop the perfect balance of pure, race-inspired performance and in-cabin driving comfort and excitement of exhaust sound and tone during normal cruising or aggressive hard throttle. Realizing that the OE exhaust tip could be improved, aFe designed a special dual 4" brushed finish, aFe laser-etched, 304 stainless steel, slash-cut exhaust tip assembly that is more free-flowing that the stock tip assembly. This exhaust system comes with a brushed finish and is 100% Hand TIG-Welded for a perfect, precise fit and a complete bolt-on installation. No modifications necessary.

Additional Information

MACH Force-Xp 2in to 2-1/2 IN Stainless Steel Cat-Back Exhaust System Porsche Boxster S (987.1) 05-08 H6-3.4L

Part Type

Intake/Exhaust System Kit

Features and Benefits

• 2 To 2.5 in. Step Design
• 2 Year Limited Warranty
• 4 in. Dual Brushed 304 Stainless Steel Assembly
• Balance Equalizer Tube
• Bolt-On Installation
• Dual 304 Stainless Steel Race Mufflers
• No Modifications Necessary
• Race Proven Spring Hook connectors
• Resonance Chamber

Product Details

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Product Downloads

#	Document Type	Download
1.	Installation Instructions
2.	Photo - lifestyle view

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

• 2 To 2.5 in. Step Design
• 2 Year Limited Warranty
• 4 in. Dual Brushed 304 Stainless Steel Assembly
• Balance Equalizer Tube
• Bolt-On Installation
• Dual 304 Stainless Steel Race Mufflers
• No Modifications Necessary
• Race Proven Spring Hook connectors
• Resonance Chamber

aFe Mach Force XP exhaust systems are constructed of mandrel-bent stainless steel and come complete with free-flowing muffler(s), OE-style bayonet hangers, flanges, and band clamps, plus all hardware necessary for a hassle-free installation. Offered in single, dual, or quad muffler configurations, their smooth curves and large diameter tubes help reduce restriction and keep exhaust gas flowing smoothly for increased horsepower and torque.

Available in cat-back, axle-back, and downpipe-back designs, almost all Mach Force XP exhausts are direct bolt-on systems that require no cutting or drilling and include all necessary hardware for a hassle-free installation. Most also include wrinkle-black powdercoated or polished 304 stainless steel tip(s) with a laser-cut stainless steel aFe power badge. Select models have carbon fiber tips with CNC-machined laser-etched inserts. aFe Mach Force XP exhaust systems are an ideal combination of performance, fit, and value.

Additional features include:
• Fit a variety of light trucks and cars, including European models
• Available with 409 or 304 stainless tubing (varies by model)
• "Stepped design" models increase exhaust velocity creating a broader torque curve throughout the rpm range
• Straight-through, free-flowing stainless steel mufflers absorb high-pitch tones producing powerful sound
• Leak-free 360-degree sealing
• Stable pipe location in high-vibration and high-heat conditions
• Bayonet tips hold hanger bushings in place for an OE-style fit
• Several versions convert OE single exhaust to dual exhausts
• Where applicable, incorporates an exhaust valve that uses the OE exhaust valve motor (not included) to regulate exhaust flow
• Some systems use a unique resonance chamber to replace the OE muffler; produces a weight savings of up to 15 lbs.
• Hi-Tuck design of specific models provide extra ground clearance when using an aftermarket suspension kit

Note: Some aFe Mach Force XP systems are "Race Only" products solely for competition use. Their use is limited to closed-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state, and federal laws.

Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.

Detailed Compatibility

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.