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MP Concepts Rear Diffuser (15-23 Challenger)

Item CH3930
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      Video Review & Installation

      Hey, guys. Adam here with And today, we're taking a very quick look at and installing the MP Concepts Rear Diffuser, available for the 2015 and newer Challenger. This is gonna fit on any Challenger if you're looking for a more aggressive rear-end appearance, something to give it a more track-inspired styling with the aerodynamic look that this has. Now, this guy from MP Concepts is made from a really high-quality injection-molded ABS plastic made using original or OEM CAD data from Ford for a perfect fit to your factory rear diffuser, it's gonna stick right on top of it.Now the texture of this is a matte black that blends in really well with the back end of the vehicle, and it's got a fine stippled grain texture. Again, very similar to the factory bumper finish, it's just got a slight texture to it with a slight sheen, mostly a matte black finish, so it blends in really well. This is a complete peel-and-stick part. Now, even though it says peel-and-stick, guys, this is gonna be on for the long haul. 3M automotive bonding tape is supplied. And I recommend picking up some adhesion promoter separately just to make sure that you get a really good bond between the diffuser itself and the bumper. Now, as you can see, this uses a four fin design to give it that aerodynamic look, so it is a lot more aggressive, something you see on a lot of those newer built vehicles out on the road today. It's just got that aggressive touch to the rear, it's really subtle, but it can make a noticeable impact.Now the price tag for this guy comes in right around 140 bucks and the install, I'm easily giving 1 out of 3 wrenches on our difficulty meter. Because it is a peel-and-stick, there's no hand tools needed, none of that nonsense. Again, I just recommend picking up adhesion promoter. I recommend some alcohol wipes because the prepping process is the most important part of the install. It's not about just sticking it on and making sure it's aligned properly, you'd got to prep the surface of the back of the diffuser and you got to prep the surface of the vehicle where it's gonna be applying to, or it's just not gonna work properly. So you want to use a soap and water mixture to clean off the actual vehicle, I'll show you guys what that looks like with some microfibers, and to clean off the back of the diffuser with alcohol wipes and apply the 3M. I also recommend using adhesion promoter right on the back of the stickiness of the 3M to really promote the adhesion. With that said, it'll take you about 30 minutes from start to finish. I'm gonna show you what the process looks like. Let's get started.Tools I recommend for the install will be a knife, an alcohol wipe or two, adhesion promoter, a clean microfiber, and a soap and water mixture, and a squirt bottle.First step for the install here is to grab your diffuser and you're gonna set it face down on our table here. I recommend picking up two things: an alcohol wipe, and adhesion promoter. Adhesion promoter is gonna help make sure that this is gonna stick on for the longterm and alcohol wipes are gonna clean off the surface before and after you apply the 3M tape. We're gonna clean off the back of the diffuser and we're gonna clean off the back of the vehicle. Now, the vehicle we're gonna use soap and water along with an alcohol wipe because if 3M is the only thing holding us on, the prep process is in fact the most important part. So I'm gonna grab this alcohol wipe here. I recommend picking up a couple just because they can dry out relatively quickly. And you're just gonna wipe off the backside here. You're gonna make your way across every surface that that 3M tape is gonna apply to.Once you have the surface cleaned off, what you're gonna do is take the 3M tape included in the kit, you're gonna peel off and stick about four pieces of 3M in a line across each of these longer surfaces. On each side, do two strips. Let's do that next. Once you have one strip applied, grab a knife, you're just gonna carefully cut that guy to length, do the same thing for the rest of them. All right. So I know this can be a tedious process, repeat all that on each one of these little sections. All right. So now we can focus on the sides here, I already took care of the other side, but this is basically just the same thing, but two vertical strips, one going up this side, one going down this side, and then two small ones up here. Now you can take your knife and carefully peel off the 3M backing on all of these 3M strips. You want to make sure that they're applied fully. All right. Repeat that for all of them.Next up, we want to apply our adhesion promoter and give it a little bit of time to dry. Now the adhesion promoter I have it comes in this tube, sometimes it's just a damp sponge, sometimes it's a little cloth that's pre-soaked, no matter what it is, you're basically gonna slightly wipe it on each of these little strips and allow it to dry. In the time that it's drying, we're gonna clean off the back of the vehicle, and by the time it's dry we'll be done and we can apply it. Now I'm gonna use this small, dry cloth since I have a little bit of it in liquid form. I'm basically just gonna blip this guy on there, and we're gonna wipe it on the 3M. And that adhesion promoter is gonna help really promote that sticky bond between the 3M and the vehicle. And now you can just repeat that for all of them. Next, we're gonna grab our soap and water mixture in our squirt bottle and we're just gonna basically spray this guy down and wipe it to clean it off. This is also another crucial step that you don't want to skip. Get all that dirt and dust off, especially because it's at the rear. So a lot of that dirt is getting kicked up by the tires, so it's gonna be especially dirty. I don't recommend using detailer like Quik Detailer or stuff like that, or Armor All, just because that can leave a chemical residue behind which can prohibit the bond. You really just want to get it clean with soap and water, no harsh chemicals. If you don't have the soap and water and you have maybe like hydrogen peroxide or some kind of alcohol wipe, use that instead. And from here with this clean, we can apply it. Just want to make sure this dries off.All right, so next we can use the corners here, those little cutouts that'll go around those plastic rivets as a guide and roll this guy into position. Don't put firm pressure on just yet, get it lined up where you want it to be, and then you can stick it down. All right. That looks good. Once you have that in position, put firm even pressure on all the 3M points. All right, you want to give this time to dry, give it time to cure before you take it out on the road, especially if it's wet outside. Let it dry, let it adhere, and you're good to go.That's gonna wrap up my review and install for the MP Concepts Rear Diffuser, available for the 2015 and newer Challenger. You can get yours right here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Track Inspired Styling
      • Durable Injection Molded ABS Construction
      • Features a Fine Stippled Grained Texture
      • Straight Forward Installation
      • Fits All 2015-2023 Dodge Challenger Models


      Track Inspired Styling. Add bold track inspired styling to your Dodge Challenger with a MP Concepts Rear Diffuser. This Rear Diffuser was designed to accentuate the already muscular body lines of your 2015-2023 Challenger for a even more aggressive appearance.

      Quality Construction. Manufactured from injection molded acrylonitrile butadiene styrene (ABS), this Rear Diffuser was designed using the original OEM CAD data from Dodge to ensure a perfect fit. ABS is an extremely strong material known for its light-weight, superior durability and impact resistance - making it perfect to withstand the hazards of daily driven vehicles. MP Concepts then completes their Rear Diffuser in a textured black finish for an OEM style appearance.

      Straight Forward Installation. The MP Concepts Rear Diffuser is simple and straight forward to install. Using the included automotive grade double sided, installation can be completed in about 30 minutes to an hour. Please note that removal of all dirt and grease is required for a secure fit.

      Application. This MP Concepts Rear Diffuser is designed to fit all 2015-2023 Dodge Challenger models.


      MP Concepts CH3930

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Rear Diffuser
      • (1) Roll of 3M tape

      Customer Reviews (98)

        Questions & Answers

        10 More Questions