2015+ Challenger V8 Hellcat MRT Version 3 Cat Back: DMS


Free shipping to Continental USA

1-2 Business days build time for all products.

SKU: MRT-92G165 Category:


2015-2022 Challenger Hellcat MRT Version 3 Cat-Back : DMS

The MRT Challenger Hellcat: DMS Version 3 MRT Cat-Back system has a loud, deep muscle car sound and is handcrafted in corrosion-resistant T304 Stainless Steel. Base systems include T304 polished SS 3.5″ tips and 2.5″ mandrel-bent tube. Black Ops black matte tip finish is available for an additional fee. This system is engineered for the best sound to match the Challenger vehicle and provides increased performance from the increased exhaust flow. Version 3 is the loudest MRT exhaust. Louder than Version 2 & Version 1. It has just enough exhaust presence with elevated sound to Get Noticed, plenty of opportunity to Feel the Performance, and packaged in a design without the excessive drone. This system also includes the MRT designed DMS (Drone Management System.)

For Challenger customers with factory-installed Active & Dual Mode Exhaust valves, MRT offers and recommends a simple solution that allows you to upgrade your exhaust system without having to develop a tune. For more information on these plates, refer to /MRT-Ford-Dodge-Active-Dual-Mode-Power-Plate-p/92g155.htm”>MRT-92G155 or simply add to your shopping cart before checkout.

Application: 2015 thru 2022 Challenger Hellcat, V8, 6.2L engine.
Doesn’t Fit: Other Challenger models.

Hear the Difference

  • How does it sound? The MRT Challenger MRT Version 3 Cat-Back: DMS #92G165 has a loud, deep muscle car sound
  • Is there drone or resonance? The drone is noticeable but tolerable.
  • What if I step on it? Wide-open throttle increases exhaust loudness and tone to an aggressive performance sound.

Are you located close to Plymouth, MI and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!

92G165: 19-20 Challenger Hellcat MRT Version 3:DMS Cat-Back Review

92G165: 19-20 Challenger Hellcat MRT Version 3:DMS Cat-Back Sound Clip

  • DIY installation for the backyard mechanic
  • T304 Stainless Steel for the best corrosion resistance
  • Engineered, designed and manufactured in the USA

Click here to read more about MRT Engineered Performance Shipping & Return Policy

Please contact first to see if we can assist with any issue you have encountered.


MRT takes care to provide you with the best, highest quality products available and each product is thoroughly inspected before shipping. If you are not satisfied with your purchase, contact MRT Customer Service for assistance.

International Orders

MRT does not offer returns for internationally shipped products; of course, MRT honors product warranties for all MRT branded products.

Return Authorization and Holiday Return Policy

All sales through MRT are considered final. All custom order parts are NON-REFUNDABLE.
MRT will only accept products returned in good condition. NO PRODUCTS WILL BE ACCEPTED AFTER INSTALLATION HAS OCCURRED.
Please contact MRT Customer Service WITHIN 7 DAYS of receiving the product to request a return. MRT Customer Service must authorize product return by issuing a return merchandise authorization (RMA) number. Credit will not be issued for unauthorized returns or COD returns.

Authorized returns should be sent to the following address:

Attn: RMA#______
45646 Port St.
Plymouth, MI 48170

Contact MRT Customer Service at
(734) 455-5807 or

Restocking Fee and Return Shipping

Customers have 2 product return options: 1) Exchange product for another of equal or greater value or 2) Return the product and incur a 20% Restocking Fee.
The customer is responsible for all shipping costs, including any incurred if delivery is attempted without success or the product is refused at the time of delivery. All returned items must be shipped to MRT via prepaid freight. Items must be returned within 15 days from receipt of the RMA, otherwise the RMA will be voided, the product will no longer be accepted, and no refund will be given.

Damage Incurred During Shipping

If your package is lost, opened, or damaged while in transit, please contact us WITHIN 24 HOURS of receiving the package. You should keep all of the original packaging. Do not contact the shipping carrier directly; MRT will file any necessary damage claims with the shipper on the customer’s behalf. MRT does not guarantee that no shipping damages, losses or delays will occur during delivery. In the case of damaged or defective goods, MRT reserves the right to repair or replace the product.

Damage due to Installation

MRT is not responsible for any costs due to improper fitment, product preparation, or installation. All MRT products should fit without force. All surfaces where an adhesive is required should be prepped before attempting installation. ALWAYS read installation instructions COMPLETELY before installing products. Installation instructions and for many products, installation videos are available on the website. Please contact us with any concerns or questions before installing the product.

Product warranty is void if the product is not installed properly, has been modified or altered in any way. If you believe that modification will be required to fit any MRT product on your vehicle, please contact MRT BEFORE making any modifications to the vehicle or product.

Michigan Law

Michigan Law shall control any claim or dispute arising out of this contract. Any controversy or claim arising out of or in any way relating to this contract or the breach thereof, shall be determined by private arbitration administered according to the Uniform Arbitration Act or any other rules the parties agree on. The number of arbitrators shall be three, one appointed by the claimant, one appointed by the MRT and the last arbitrator shall be appointed by the first two arbitrators. The arbitration shall be held in Michigan. The languages of Arbitration shall be English. The arbitration shall be final and binding upon both of the parties and any award may be entered as a judgement in any appropriate circuit court within the state of Michigan. This arbitration shall include actual attorney fees for the prevailing party.

Additional information

Weight60 lbs
Dimensions24 × 15 × 48 in


MRT Engineered Performance


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