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 Oct 2 - Oct 7

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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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4.2 ★★★★★
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Tara McDowell
Natrona Heights, US
★★★★★ 1
Material was scratchy
Itchy material
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Reviewed in the United States on April 16, 2026
K
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Kim
Whiting, US
★★★★★ 5
Awesome
Size: Medium, Color: Set-un8
Great fit, pretty colors and actually cotton very happy I bought theses
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Reviewed in the United States on January 5, 2026
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Delaney Johns
Draper, US
★★★★★ 2
Could do in a pinch, 'meh' quality
Size: Small, Color: Set-un8
Eh, I guess these are fine for the price. They're not super high quality, and the fit is kind of weird in my opinion. I have doubts that they would last a lot of repeat washings, especially the waistband. I returned them.
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Reviewed in the United States on June 3, 2025
A
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Angie Rae
Lake Worth, US
★★★★★ 5
Love These
Size: Medium, Color: Off White/Rose Wood/Black
I am very sensitive to any kind of chemicals so I have to buy organic cotton fabrics. I have to wash anything I buy at least 5-10 times so I won't have a reaction. I only had to wash these about 5 times and had no reaction. I have a little muffin top, so I like the high waist. They fit really well, true to size. They are thin but well made. I will most likely buy again. I am 130lbs and 5'8"
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Reviewed in the United States on March 13, 2026
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Amazon Customer
Lowell, US
★★★★★ 5
Super comfortable! Great for layering under loose, cheeky shorts. Colors amazing!
Color: Multicolor B (5-pack), Size: Small
I specifically got these to wear under some loose shorts I got from Amazon (5 Pack Modal Lounge Shorts) so my cheeks don't show when bending over, and the pop of color looks amazing anyway! I have a 27" waist and 37.25" hips, and size Small works perfect for me. I love how these shorts have a classic underwear lining that a pad would sit perfectly on, whereas the longer boxer style ones of this same brand do not have that classic panty liner style crotch. The material is uniquely thick, stretchy, and thin/breezy all at once! To be honest, I am not opposed to wearing these straight up as shorts to work out it. They look like cute booty shorts and no one would know they're technically underwear. Plus when you buy a 5 pack like this, you're getting an amazing price whereas most athletic shorts are priced at $20 per pair or more, and they're not made with ANY natural materials like these BambooCool shorts are. I like them!
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Reviewed in the United States on March 24, 2026

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