M7 Speed Stage 1 Chassis Reinforcement Kit - MINI Cooper S & JCW Gen 2 R55-R59 | 56-5M7550

For the ultimate MINI Performance enthusiast M7 Speed has bundled two of its industry leading bolt-on MINI Cooper suspension components to save you money!  In this Stage I Bundle we have packaged our top selling M7 Strut Tower "J" Brace Kit with our exclusive M7 Under Strut System for the R56 Gen 2 family of MINI Coopers.

Compared to buying these kits separately you save $$$$.

One of the biggest improvements you can make to gain grip is stiffening your chassis. A stiffer chassis allows the suspension, like the springs, shocks and sway bars to work more effectively and do their job as intended; keeping the tires in better contact with the road. The M7 Strut Tower "J" Brace Kit and Under Strut System (USS) feature easy to install integrated billet and extruded aluminum pieces that will brace, connect, and triangulate your MINI Cooper chassis for greatly improved chassis stiffness. Make maximum grip, increase steering response and reduce understeer during aggressive turn-in or emergency maneuvers.  This is a "WOW! Why didn't I do this sooner?" addition to your favorite speed monster.  Buy the best, buy the original…you will not be disappointed! Easy to install. M7 Speed products are Engineered, Tested & Proven to work!

Strut Tower Brace Kit

If you are concerned about strut tower mushrooming and looking for improved handing, then the M7 Strut Tower "J" Brace (STB) is the answer.

The J-Brace from M7 Speed is exactly what people with the factory John Cooper Works intake have been waiting for: a brace that stiffens up the front end, protects the strut towers from mushrooming, and looks great to boot! This is our best selling, best fitting and best looking strut tower brace for the R56 Gen 2 family of MINI Coopers. Customers and magazines have raved about its good looks, perfect fit and easy installation. And with all this you get a real performance adder. You will feel an immediate improvement in handling after installing the M7 Strut Tower "J" Brace. Guaranteed!


This M7 Strut Tower "J" Brace for the R56 is made from high strength 6061-T6 aluminum alloy billet material and precision CNC machined. Finish is a beautiful matte black anodize and a M7 logo proudly engraved in the middle of the cross bar.


The J-Brace has been slightly modified for the 2011-2013 model year MINI Cooper S to allow for better clearance to stock parts. Because of limited hood clearance, this brace DOES NOT fit the base model Cooper (non 'S' model).

Installation Notes:Installation is a snap (often taking less than 20 minutes)! No need for new nuts, the brace uses the three stock nuts on each side. Installation instructions available on line by simply clicking the "INSTALLATION" link on this page.

Under Strut System

Not many upgrades will force you to say, "damn that's incredible" or just plain "wow." The M7 Under Strut System (USS) features three integrated pieces that will brace, connect, and triangulate the bottom of the chassis for greatly improved chassis stiffness. This improved stiffness will give the MINI better turn-in capability allowing the car to rotate into the corners with ease, and also greatly reduce understeer.The M7 Under Strut System is made of extruded and CNC machined aluminum that comes in a black anodized finish that is durable and designed to prevent chipping and corrosion. Stainless steel fasteners and necessary tools for nut insert installation are all included! We'd say our months of rigorous testing at local race tracks, treacherous canyon roads and sweeping on/ off-ramps, were a good investment just the same thing you'll think about the M7 USS.

Installation Notes: If you are not using a lift, please be sure that you have enough room so you can drill square (perpendicular)to the underbody. We cannot stress enough how important this is. Drilling at an angle will cause the hole for the nut insert to be too large for proper installation. Please do NOT attempt to install your USS on a slanted driveway. Note: There may be fitment issues on some applications with the Milltek and Alta exhaust systems. 

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