Does your Can-Am Defender need a little more “oomph”? Introducing the Defender Rear Chassis Stiffener from Thumper Fab, and believe us when we say you won’t look back! This amazing frame stiffener will add extra reinforcement to your ride for larger wheels, oversized tires, lifts and portals. Winning never felt so good.

You, my friend, can rest assured that you are getting the best hard-shell engineering on the market when it comes to this frame stiffener. At Thumper Fab we go above and beyond, and designed the most robust kit around – because if it’s going on YOUR vehicle, it had better be strong! Not to mention that this kit is also the easiest one to install – you really don’t even have to be a top mechanic to get it done in no time at all.

Roll through those trails in rugged ease – without compromising your sanity at the same time! With the Bolt-on Frame Stiffeners from Thumper Fab you have succeeded in equipped your Can-Am defender with superior stability and control - because nothing less than best is what goes on our cars. Get ready for an unbeatable ride experience with this frame stiffener for your beloved off-roader. Pick yours up today to join in on all the fun…without missing a beat!

Computer Aided Design

We have spent countless hours and multiple prototype revisions to make sure we have developed a kit that will greatly increase strength for your control arm mounts and chassis subframe. We designed the frame stiffener / gusset kit to reinforce weak links and to work with your OEM or Aftermarket Control Arms and Lift Kits with same model year fitment. Using the latest technology in 3D scanning and computer modeling software all aspects of the suspension and chassis geometry have been verified for precision fitment.