Nine best-selling motorsport products at GSM Performance, ranked by units sold over the last twelve months. Drawstring helmet bag at £6.00, Sparco MS-4 Mechanics Overalls at £73.20, OMP First balaclava boots and race suit in the same nine. Every price inc VAT where applicable, verified on the live site 12 October 2026.
Our recommended coilovers for the Nissan 350Z, from Eibach lowering springs to AST and MOTON 3-way kits, with prices and what each one is for.
On an Elise or an Exige the year decides the brand, not your preference. B-G take the early cars and MOMO take the later ones.
The Alpinestars Hypertech V3 three-piece set: 2-layer 265 g/sqm Nomex flagship suit, dual-certified Supertech boots and Tech 1-ZX V4 gloves, all FIA 8856-2018. Three suit colourways, three boot colourways, six glove colourways. Colour matching, sizing and alternatives.
Our recommended coilovers for the BMW Z4 E85 and E86, including the Z4 M, from Eibach springs to AST and MOTON 3-way kits, with prices and which Z4 each one fits.
The AST 5200 in depth: separate rebound and compression on a remote reservoir, how it is built, AST’s starting settings, which cars it covers, and how it compares with 5300 and MOTON.
The Saab 900 has six listings across five part numbers, and the APC Turbo takes its own. Here is the full B-G and MOMO Saab range.
Five racing balaclavas from £36 to £64.80 inc VAT. The Sparco RW-4 Single Layer at £36 is non-FIA. The cheapest FIA 8856-2018 approved pick is the OMP First at £37.20, which is £1.20 more. All five picks are open face cut.
Five helmet bags from £37.20 to £57.90 inc VAT at GSM Performance. Rocked-IT soft bag from £37.20, Sparco padded clamshell from £43.20, OMP Co-Driver multi-compartment bag from £50.40. The Sparco Foldable Helmet Box at £55.80 is the only rigid option, and folds flat for storage.
12 BC Racing coilover kits for Dodge across nine models. The Viper 1996 to 2008 lists twice by front strut fork size: 85.5mm and 97.5mm are separate kits. BR covers everything; Avenger Sedan and Caliber Srt-4 also on RM.
The MOTON 1-Way Clubracer in depth: 15 clicks of rebound, no reservoir, a coilover at every corner, how it compares with the AST 5100 Clubracing, and the options worth knowing.
Sixteen B-G Isuzu listings come down to four part numbers. Work out which of the four you need and the rest of the range stops mattering.
Not sure what fits, which approval you need, or what to choose next? Ask Garreth and Cameron. You’ll get a practical answer from people who handle the kit every day.
