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T-REX Upper Class Series 3-Window Mesh Grille; Black (15-17 GT)

Item 389156
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      Video Review & Installation

      Hey, guys. Stephanie, with, and this is my review of the T-REX Upper Class series 3-window polished mesh grille for the 2015 and up Mustang. This Upper Class series 3-window mesh grille is going to be for the S550 owner who would like to upgrade the front grille and really change the looks of the front end but would like to hang onto that 3-window look that the factory grilles offer. This grille works great for creating more of an aftermarket aggressive look, as opposed to that stock look, and the mesh is also perfect if you're not really into the horizontal bar grilles that are out there. Now guys, this is a polished front mesh grille, and it's not going to be for everyone since this is so different. However, it does achieve the look that T-REX was after. And if this isn't for you, we definitely have some other options that will suit you better. This mesh grille does keep that stock 3-window design, like I just mentioned. And it's one of the only aftermarket grilles out there at this time that does that. What makes this grille different, however, is that it gets rid of that honeycomb and, obviously, the running pony. It has fine-woven wire mesh, and both upper and lower pieces are also stainless steel with a 12-gauge frame, which will be nice for those cars that see all different types of road conditions. This one here is obviously a bright polished design that's really going to stand out in the front end. But if you like this design but not the finish, it's also available in a powder-coated black finish as well. Just from looking at this grille here on the table with me, this isn't like the normal aftermarket grille that I normally see that's made out of ABS plastic. This is a full 304 stainless steel construction, and it also has some weight to it. This is a heavy duty grille if I ever saw one, and it's very sturdy. There isn't any flex with the grille, and it's a solid piece. But the weaving on the mesh is nicely done and very even. Even if you don't like the finish of this grille, you can see that the woven formed wire mesh is cleanly done. Now, it's worth mentioning here, that like the other T-REX grilles that are available for the S550 Mustang, the upper grille is a complete replacement of the factory grille, but the bottom grille is simply an overlay, not a complete replacement. So you won't be eliminating that lower factory grille, but just going over top of it. Both the black and the polished T-REX grilles can be picked up as a combo, both the upper and the lower grille, or you can buy the upper and lower separate, if you don't want to spring for the combo. There is going to be a cost difference between the finishes. The polished version is going to cost a little bit more, but either way, you're looking at close to $750 for the polished combo setup. If you're interested in just the polished upper grille, it's going to cost a little over $450 by itself, or just under $300 for the lower overlay. Now, remember that the black version of this grille is going to cost less than this polished version, and this is not your typical aftermarket grille. It's full stainless steel, so it's not going to crack or break or fade over time, and it's going to hold up against road debris. Install for these grills is easy, a one out of three wrenches on the scale. But the time for install is obviously going to change, depending on if you're installing both upper and lower, or just one or the other. I'd say about an hour to complete both, since the upper grille is a complete replacement, and the lower's just an overlay. And they both come with all of the needed hardware. You won't need anything special to complete the install. You're looking at some basic tools like a Phillips-head and a flat-head screwdriver, a 7mm wrench, and a few smaller size sockets, and a ratchet. You do need to remove the factory bumper, so you can start by popping out the eight plastic clips that are holding in the black plastic cover shroud. And as a side note, you can use some painter's tape at any time to give you a little bit of protection around the work area, so you don't scratch paint or mark up the shroud. On each side of the bumper, you'll need to back out the screws that are holding the bumper into place, as well as the plastic clips that are on each side of the front tires. After that, there are about 12 screws holding the bottom front of the bumper overlap in that need to be backed out. Then you can pop the fascia off by pulling the sides near the front corner lamp, right underneath the headlight. Getting the top factory grille out isn't as hard as you might think it is. There's a soft gasket that comes out with a screwdriver, and then you can remove the plastic clips that are along the edge of the factory grille. The new grille installs with the supplied fasteners that go around the factory clips, and then the center bumper soft gasket goes right back in after the new grille. The lower grille is going to go over top of the factory grille here, and you're going to need these brackets for the install. The machine screws go through the bracket, and the two wing nuts are then threaded on. The brackets are then fixed to the inside of the bottom bumper mesh, and the lamp nuts are tightened down to the mesh frame. Then it's ready to be fixed to the factory grille by tightening down the mesh from the front. Just as a little tip, you can use a long flat-head screwdriver to hold the toggle links while you're tightening down the screws to help out with this. After that, it's just a matter of getting the front bumper back onto the car the same way you took it off. Wrapping things up here, the T-REX Upper Class series 3-window polished mesh grille is going to keep that factory 3-window design for those of you that like that feature, but it's going to ditch the pony and the honeycomb and go with a very bold polished grille instead. Both the upper and lower grills are stainless steel and come in either polished or powder coated black, and they're easy to install. You can check these grilles out more online for yourself. And for all things Mustang, keep it right here at

      Product Information

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


      • T-Rex "Upper Class" Series Grilles
      • Three Window Design
      • 304 Stainless Steel Construction
      • Stainless Steel Fine Woven Formed Wire Mesh
      • Durable Flat Black Powder Coated Finish
      • Simple Installation - No Cutting Required
      • Made in the USA
      • Upper and Lower Grilles are Available Separately or as a Combo Kit
      • Fits 2015-2017 GT Mustangs with Factory Front Fascia Installed


      3 Window Mesh Upper grille. Add an intimidating appearance to your S550 Mustang with a T-Rex Upper Class-Series Three Window Black Diamond Mesh Replacement grille. Featuring a unique mesh design that has 4 square diamond shapes per square inch, this T-Rex Upper grille is a replacement grille that requires removing your factory upper grille for installation.

      Matching Lower grille. The optional lower diamond mesh grille is a perfect match to the upper to complete the aggressive appearance of your Mustang. The T-Rex Lower grille is an overlay that attaches over top of the factory lower grille.

      Quality Construction. Designed using the original OEM CAD data from Ford to ensure a perfect fit, both the upper and lower T-Rex Upper Class-Series Mesh grilles are constructed from 304 stainless steel and features a sturdy twelve gauge frame and a fine woven formed wire diamond mesh that is completed in a durable flat black powdercoated finish for an aggressive appearance and long lasting corrosion resistance.

      Application. These Upper Class-Series Three Window Black Steel Mesh grilles are designed to fit 2015-2017 GT Mustangs with the factory front fascia installed. The Upper and lower grilles are available separately or in a convenient combo kit (select from choices above).

      Fitment: 2015 2016 2017 Details

      T-REX 51529




      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      Combo Kit Option:

      • (1) Replacement Upper Grille
      • (1) Lower Grille Overlay
      • Mounting Hardware


      Upper Grille Option:

      • (1) Replacement Upper Grille
      • Mounting Hardware


      Lower Grille Option:

      • (1) Lower Grille Overlay
      • Mounting Hardware

      Customer Reviews (17)

        Reviews of T-REX Exterior products have an average rating of 4.5 out of 5

          Questions & Answers

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