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Renault 5 Turbo high performance brake kits

Time to upgrade your Renault 5 Turbo brakes? We have a range of performance brake conversion kits for your Renault 5 GT Turboincluding the fantastic Billet 4 conversion kit from HiSpec Motorsport. Get 5% discount on all Renault 5 kits now! We all know the Renault 5 Turbo is a fantastic high performance hatch back made in the 80’s and […]

Nissan 300ZX performance 300mm 4 pot brake kits

Nissan 300ZX performance brake upgrades now available! Feeling you need more bite from your Nissan Z32 300ZX brakes? These 4 pot calipers and 300mm rotors will do the job, link them with Ferodo DS2500 pads to feel your brakes jump into a new league. We have a range of Nissan 300ZX brake kits available in a range of […]

Nissan brake upgrade kits – Pulsar GTiR, 200SX and 300ZX brake kits

Drive a powerful Nissan 200SX S13, NIssan Sunny Pulsar Gti-r or even Nissan 300ZX? Time for some powerful brakes? We have a range of high performance brake kits made specifically for your sports cars. With powerful 4 and 6 pot calipers combined with oversized discs you won’t be disappointed. Nissan conversion brake kits Each of […]

Toyota MR2 brake kits to improve your stopping power

We have a wide range of brake upgrade kits for a range of @Toyota‘s like theToyota MR2. Upgrading your brakes to large 4pot calipers with oversized discs will help increase your braking power and stopping capability. Check out our selection now. Toyota MR2 brake conversion kits the Toyota MR2 is one of Toyota’s finest achievements […]

SVA Spot calipers are perfect for Trike and kit car conversions

Building a Trike? Kit car or need some brakes when designingCustom cars? We have a range of SVA spot calipers, 2 pot and 4 pot calipers with hydraulic mechanisms. Perfect when designing your braking system. HI Spec Motorsport are a UK manufacturer  who focus on creating braking solutions for a vast number of applications and vehicles. We recommend […]

What our customers say

Great little showroom to try a range of fixed bucket seats which is essential for a snug fit. Gave honest advice and didn't try to oversell which is great. Bought a pair of Mirco RS1 with custom material and colours - great seats for a great price!
Dominic Inggall Avatar
Dominic Inggall
4/23/2016
Would highly recommended GSM proformance for any motorsport equipment, great customer service, go out there way to double check my order was correct befor sending out to avoid any problems with getting my seats fitted, I will definitely be going back for everything else I need, great company, no issues
Sam Atkins Avatar
Sam Atkins
7/04/2018
Fantastic service from the guys at GSM. I bought a sabelt gt2 seat then changed my mind and had a Micro RS2 and they couldn't of been more accommodating. I will definetly be back for more bits for my clio 200. Thanks again fellas
Liam Christopher Higham Avatar
Liam Christopher Higham
9/06/2017
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Before you leave. Is there anything I can assist with? With 17 years of industry knowledge and hands-on experience, I’m here to help. Let’s get you race ready!