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X-Force Varex Cat-Back Exhaust (15-17 Ecoboost)

Market Price $1,137.47 You Save 13% ($148.37)
Our Price

$989.10

FREE Shipping
  • Item 390327
  • MPN# FM16-VMK-CBS

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • 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 EcoBoost Mustangs
Adjustable Exhaust Sound. An X-Force Varex Cat-Back will allow you to change the sound of your EcoBoost Mustang's exhaust from a smooth street sound to a rich, throaty race car growl or anywhere in between with just a push of a button. The X-Force 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 turbo howl while cruising down the highway. The choice is yours.

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 X-Force Varex Cat-Back Exhaust is manufactured from high quality 3" diameter stainless steel tubing for superior durability and corrosion resistance. The System includes a Y Mid Pipe 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 X-Force Varex Cat-Back Exhaust is designed as a direct fit bolt-on upgrade for the 2015 to 2017 EcoBoost Mustangs equipped with the turbocharged 2.3L Inline 4-cylinder engine.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Passenger Side Muffler Assembly
  • (1) Driver Side Muffler Assembly
  • (1) Y-Pipe
  • (2) Exhaust Hangers
  • (1) Control Module
  • (2) Key FOB's
  • Wiring Harness
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 3" Tip Size: 4"
Muffler Type: Chambered Fitment: 2015-2017 EcoBoost
Will it fit my Mustang?
  • EcoBoost - 16, 15, 17

Most Helpful Reviews

5/5
YES YOU HAVE CAN YOUR CAKE EAT IT TO

I DID A LOT OF READING BEFORE DECIDING WHAT TO BUY, BUT ULTIMATELY CHOSE THIS SYSTEM BECAUSE IT APPEARED TO BE THE BEST VALUE. THE QUALITY OF THE EXHAUST SYSTEM IS VERY GOOD, FINISH WAS PERFECT. THE SOUND ...

Read More
Helpful (1)

4/5
Great

Great product, fast shipping fast installation and good support

Helpful (0)

Overall Rating 4.5 out of 5 stars
Read All 2 Reviews

Customer Photos

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4 Questions / 3 Answers

Ask a Question

Hi This will fit my procharger supercharged 3.7 v6 2015 ford mustang ? Fidel

Fidel

  • The X-Force Varex Cat-Back Exhaust is designed specifically for the Ecoboost model, and will not fit V6 models.

    Rob D

Helpful (0)

Looking to get a CAI and a tune, will this effect the tuning process at all I.E. having to get the car retuned?

CAIRs550

Hi This will fit my procharger supercharged 3.7 v6 2015 ford mustang ? Thanks. Regards

Fidel

  • This will not fit a V6 Mustang without some exhaust modification, you will see better gains finding an exhaust designed specifically for a V6 model.

    Doug P

Helpful (0)

Will this product fit with Cp-e downpipe? This is the part number 388889. The downpipe connector in the picture shows it uses bolts and gaskets, while my current exhaust (magnaflow) and cpe downpipe uses different connection.

dapin

  • Yes, this will work with any factory style connect downpipe or a larger downpipe with a step down adapter.

    AMSam

Helpful (0)

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Customer Reviews (2) Write a Review

Overall Rating 4.5

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 4.5 4.5
  • Exhaust Note 4.5 4.5
  • Fit & Finish 4.5 4.5
  • Bang For Your Buck 5 5



  • 5/5

    Installation Time: Afternoon

    May 10, 2016

    YES YOU HAVE CAN YOUR CAKE EAT IT TO

    I DID A LOT OF READING BEFORE DECIDING WHAT TO BUY, BUT ULTIMATELY CHOSE THIS SYSTEM BECAUSE IT APPEARED TO BE THE BEST VALUE. THE QUALITY OF THE EXHAUST SYSTEM IS VERY GOOD, FINISH WAS PERFECT. THE SOUND OF THE EXHAUST WHEN CLOSED IS SLIGHTLY LOUDER THAN STOCK. WHEN OPEN IT HAS A THROATY GROWL THAT SOUNDS AWESOME. NO DRONE.SLIGHTLY LOUDER AT HIGHWAY SPEEDS BUT NOT ANNOYING. IT DOESN'T SOUND LIKE A 4 CYLINDER AT ALL. EVERYBODY THAT HEARS IT IS WOWED. LOUD BUT NOT TOO LOUD. USING THE TRACK APPS 1/4 MILE RUN I GOT 14.9SEC 97MPH TIMES TWICE. WITH THE NEW EXHAUST OPEN I GOT 14.3SEC 99MPH UNDER IDENTICAL CONDITIONS. GREAT. ONLY COMPLAINT IS THE NEW SYSTEM IS 11LBS HEAVIER THAN THE STOCK ON. BUT THE MUFFLERS ARE A LOT HEAVIER DUE TO THE ALTERNATIVE PASSAGEWAY AND BUTTERFLY VALVE MECHANISM. ALSO THE TAILPIPES ARE LARGER DIAMETER. ALL IN ALL THE BACKPRESSURE MUST BE GREATLY REDUCED, LETTING THE TURBO BREATH. SEEMS LIKE THE POWER DROP AFTER 5500RPM IS LESS THAN BEFORE. WITH A TUNE THIS THING WOULD FLY.

    TUMBLEWEED

    Year: 2015 Submodel: Ecoboost

    Helpful (1)

  • 4/5

    June 08, 2017

    Great

    Great product, fast shipping fast installation and good support

    EllaD

    Year: 2015 Submodel: GT

    Helpful (0)

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