2024-2025
2015-2023
2010-2014
2005-2009
1999-2004
1994-1998
1979-1993
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
- Customer Submitted:
- How to Install X-Force Varex Cat-Back Exhaust on your Mustang
Guaranteed 12/24 Delivery Still Available see item page for details! available on most items - Details
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Find Cat-Back Exhaust for your Mustang
XForce Varex 3-Inch Cat-Back Exhaust (15-17 Mustang GT Fastback)Find parts that fit my vehicle
Item 386428
$0.00
20 Reviews
14 Answers
Our Price
$3,330.00
Ship to: 43215
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$299.00
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- AmericanMuscle Exclusive
- Varex Cat-Back with "Adjustable Sound"
- Street Mode, Race Mode and Anywhere in Between
- Electronically Controlled
- Mid-Pipe Resonator and Adjustable Chambered Mufflers Included
- Durable Stainless Steel Construction
- 3" Mandrel-Bent Tubing
- 4" Polished Slant Cut Tips
- Direct Bolt-On, No Cutting or Welding Required
- (2) Remote Control Key Fobs Included
- Fits 2015-2017 GT Mustang Fastback Models Only
| Brand | XForce |
| Exhaust System Type | Cat-Back System |
| Exhaust System Material | Stainless Steel |
| Exhaust System Tip Finish | Chrome, Polished |
| Exhaust System Tubing Diameter | 3.00 Inch |
| Exhaust Loudness | Moderate |
Description
Adjustable Sound. By installing a XForce Varex Cat-Back Exhaust, you can dramatically change the sound of your S550 Mustang's exhaust from a mellow street sound to a rich, throaty race car growl or anywhere between with just a push of a button. The XForce Varex Cat-Back features electronically adjustable Varex performance mufflers. Close them when driving through a residential area to stay low key. Then open them up to let your coyote howl while cruising down the highway.
How It Works. Varex performance mufflers utilize a sophisticated internal electronic butterfly valve mechanism to direct the exhaust flow within the muffler. In the open position, the valve "uncorks" the exhaust flow allowing it to take the path of least resistance. The muffler then acts more like a straight-through muffler for a rich throaty race style exhaust note. In the closed position, the valve blocks the exhaust flow, forcing it through the chambered paths to produce a classic, mellow street friendly sound. This unique design is perfect for personalizing the power and sound levels of your Mustang to suit your own specific needs.
Stainless Steel Construction. This XForce Varex Cat-Back Exhaust is manufactured from high quality 3" diameter stainless steel tubing for superior durability and corrosion resistance. The System includes a Mid Pipe resonator and features two adjustable chambered mufflers that end with massive 4.0" diameter polished stainless steel tips. The exhaust tips exit in the stock location for impressive muscle car looks and sound.
Direct Bolt-On Installation. Engineered to be a direct upgrade replacement, this Varex Cat-Back will easily bolt up to the factory piping without any modifications required for a straight forward installation. The control module that powers the butterfly valves can be plugged into your Mustang's 12v accessory outlet for easy plug and play operation or permanently connected to a 12v source - the choice is yours.
Application. This XForce Varex Cat-Back Exhaust is designed as a direct fit bolt-on upgrade for the 2015 to 2017 GT Mustang Fastbacks equipped with the DOHC coyote 5.0L V8 engine. This Cat-Back does not fit convertible models.
How It Works. Varex performance mufflers utilize a sophisticated internal electronic butterfly valve mechanism to direct the exhaust flow within the muffler. In the open position, the valve "uncorks" the exhaust flow allowing it to take the path of least resistance. The muffler then acts more like a straight-through muffler for a rich throaty race style exhaust note. In the closed position, the valve blocks the exhaust flow, forcing it through the chambered paths to produce a classic, mellow street friendly sound. This unique design is perfect for personalizing the power and sound levels of your Mustang to suit your own specific needs.
Stainless Steel Construction. This XForce Varex Cat-Back Exhaust is manufactured from high quality 3" diameter stainless steel tubing for superior durability and corrosion resistance. The System includes a Mid Pipe resonator and features two adjustable chambered mufflers that end with massive 4.0" diameter polished stainless steel tips. The exhaust tips exit in the stock location for impressive muscle car looks and sound.
Direct Bolt-On Installation. Engineered to be a direct upgrade replacement, this Varex Cat-Back will easily bolt up to the factory piping without any modifications required for a straight forward installation. The control module that powers the butterfly valves can be plugged into your Mustang's 12v accessory outlet for easy plug and play operation or permanently connected to a 12v source - the choice is yours.
Application. This XForce Varex Cat-Back Exhaust is designed as a direct fit bolt-on upgrade for the 2015 to 2017 GT Mustang Fastbacks equipped with the DOHC coyote 5.0L V8 engine. This Cat-Back does not fit convertible models.
Fitment:
DetailsXForce ES-FM15-VMK-CBS
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Passenger Side Muffler Assembly
- (1) Driver Side Muffler Assembly
- (1) Resonator Mid-Pipe
- (2) Exhaust Hangers
- (1) Control Module
- (2) Key FOB's
- Wiring Harness
Tech Guides:
4.5
Customer Reviews (20)
Questions & Answers (14)
Will It Fit My Mustang
- GT - 15, 16, 17
Fits fastbacks only, does not fit convertible models.
