SKU: 6666372157

aFe Mach Force-Xp 2-1/4 IN to 2-1/2 IN 304 Stainless Steel Cat-Back Exhaust System - Porsche Cayman 718 GT4

Sale price$1644.30 Regular price$1827.00
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

aFe Mach Force-Xp 2-1/4 IN to 2-1/2 IN 304 Stainless Steel Cat-Back Exhaust System - Porsche Cayman 718 GT4Up to +11 HP and +29 lbs. x Ft. TQ. Constructed from 2 1 4 IN 2 1 2 IN Mandrel Bent Brushed Finished 304 Stainless Steel Tubing Dual 4 1 2 IN Diameter Polished 304 Stainless Steel Exhaust Tips Utilizes Factory Style Flanges for a Secure Fit Includes Factory Style Exhaust Valves (Using Factory Motor, Not Included) 100% TIG Welded for Strength and Durability All Necessary Hardware is Included for a Hassle Free Installation Performance Gains: This system

  • Up to +11 HP and +29 lbs. x Ft. TQ.
  • Constructed from 2-1/4 IN - 2-1/2 IN Mandrel-Bent Brushed Finished 304 Stainless Steel Tubing
  • Dual 4-1/2 IN Diameter Polished 304 Stainless Steel Exhaust Tips
  • Utilizes Factory Style Flanges for a Secure Fit
  • Includes Factory Style Exhaust Valves (Using Factory Motor, Not Included)
  • 100% TIG-Welded for Strength and Durability
  • All Necessary Hardware is Included for a Hassle-Free Installation

 

Performance Gains:
This system produced gains of up to +11 HP and +29 lbs. x Ft. TQ., as measured on our in-house dyno.

2-1/4 IN - 2-1/2 IN 304 Stainless Steel Construction:
This cat-back exhaust system is constructed of 2-1/4 IN - 2-1/2 IN mandrel-bent brushed finished 304 stainless steel tubing for maximum strength and durability.

Dual 4-1/2 IN Diameter Polished Exhaust Tips:
Finishing off this exhaust system are dual 4-1/2 IN diameter polished 304 stainless steel exhaust tips. The tips features a laser etched aFe POWER logo for a unique style.

Aggressive Sound:
This system produces an aggressive sound unleashing all available horsepower and torque.

Installation:
Utilizing factory style flanges and this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation.

High-Flow High-Temperature Metallic Black Muffler:
This system features a high-flow high-temperature metallic black muffler, producing a powerful sound. The muffler has a high-temperature metallic black finish for ultimate corrosion resistance.

Muffler with Integrated X-Pipe:
The stainless steel muffler features an integrated x-pipe to balance and evenly distribute exhaust pulses traveling through the exhaust system, minimizing exhaust drone and maximizing scavenging.

Exhaust valve:
This system incorporates factory style exhaust valves that integrate with the factory exhaust controls. The valves help direct and control the flow of exhaust gases by opening or closing passageways for maximum performance.

Computer-Aided Design:
State-of-the-art computer-aided design technology is utilized for precise vehicle fitment.

TIG-Welded:
100% TIG-Welded for race-proven strength and durability.

Emissions Disclaimer:
This product does not require a CARB EO#.

aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.

Download Installation Guide 




Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 6666372157

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Carol Moholt
Grantham, US
★★★★★ 4
Nice shirt. Size longer than usual
It's a good shirt, nice quality, a little too long as far as I'm concerned, but the quality is good and it's lightweight. Which is what I like. Like. I don't like heavy shirts that need to be washed and washed to be broken in like this one feels now
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Reviewed in the United States on November 11, 2025
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BFam
Draper, US
★★★★★ 5
Great tshirt
Great fit and quality! Looks good and is comfortable.
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Reviewed in the United States on May 5, 2025
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LM Melton
Lexington, US
★★★★★ 5
Great product!
Good quality
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Reviewed in the United States on May 6, 2026
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Rachael D Rowe
Massapequa, US
★★★★★ 5
Loose fit soft cotton
It's true to size for a lose fit. I usually swim in normal size shirts but hate buying kids size because they are so boxy. I am 5 foot tall and 105lbs. The xs fits very nicely. The color is rich and fabric soft.
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Reviewed in the United States on May 10, 2024
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Leanne Burklow
Fort Morgan, US
★★★★★ 5
Great quality shirt
Great shirt. I purchased in 2 different colors. Washed and dries well without shrinkage. Great quality tshirt and print. Would buy again.
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Reviewed in the United States on December 15, 2025

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