aFe Power 2014-2018 Porsche 911 GT3/RS (991) MACH Force-XP Stainless Steel Cat-Back Exhaust System

Performance Gains:
This system produced gains of up to +26 HP and +38 lbs. x Ft. TQ., as measured on our in-house dyno.

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

Dual 4 IN Diameter Brushed Exhaust Tips:
Finishing off this exhaust system are dual 4 IN diameter brushed 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 hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation.

Integrated Crossover Balance Tube:
This system features a crossover balance tube designed to equalize and distribute exhaust pulses reducing drone, and improving sound.

Exhaust Valves:
This system incorporates factory style pneumatic exhaust valves. The valves open the 2-1/2” Muffler bypass tube or direct the flow through the 2 IN loop pipe that replaces the factory side mufflers.

Integrated Mitered Merge Collector:
A mitered merge collector is used to decrease turbulence and increase exhaust velocity resulting in increased horsepower, torque and improved throttle response.

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.