Tarox Big Brakes
Upgrading your braking capability has never been easier. Tarox performance road, track, and Motorsport applications.
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Why GSM Performance?
Established in 2003, our small family run business has been providing performance big brake kits for over 20 years. We’re here to ensure you’re performing at your best on the road or track.
Smart ideas
With dozens of intelligent concepts, you’ll find what you’re looking for in our store, and it will be unique and personalized to match.
Outstanding support
Our customer support is second to none – users rave about how we don’t rest until every issue is solved to their satisfaction.
Secure checkout
With 128-bit SSL security with advanced encryption you are guaranteed that your purchases are safe.
Real Products From Real Customers
We bring you photos of real performance kits, supplied to real customers, setting ourselves aside from all the online-only websites and e-stores.
I just can’t recommend Shoptimizer enough. I feel like I’m on a first-name basis with some of the crew, they’re just so unbelievably helpful, no matter what the question. Their products are also so beautifully well made and easy to maintain, they’ll last for years to come.
Every order from Shoptimizer has been an amazing experience. their site provides lots of detail so I know exactly what I’m getting and their customer support is just outstanding. I needed to swap an item for a different size and they arranged everything for me within 24 hours.
Offer of the week!
Outdoor essentials from legendary designer Tom Woo available at 25% off for one week only. Don't miss out on this incredible deal!
Our most popular products
Brands we stock
We pick the very best so you can be assured of the quality. There can be no compromises when it comes to materials, ease of wear, and durability.
What our customers say
Purchased a set of seat mounts on eBay. The parts arrived promptly and well packaged. I will definitely be using GSM Performance again in the near future.
Went down today for seat fitting, really honest advice, happy to try all the options with me, and work out harnesses too, competitive prices to boot! Can't wait to get my new seat in! Really helpful and straight forward. Can’t wait for my parts to arrive and then to order my seats also ��