Collection: Best Selling Products
The parts our customers keep coming back for — proven Haltech engine management, Kelford camshafts, and platform-specific upgrades for Nissan S-chassis and Z32 builds.
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Sikky Pro 1000 Quick Change Rear 10in with OS Giken 2-Way LSD (1350 U-Joint, 31-Spline CV Flanges, Billet Gear Cover)
Regular price $5,318.74 USDRegular priceSale price $5,318.74 USD -
Vibrant Block Off Flange for TiAL 35-38mm External Wastegate
Regular price $12.88 USDRegular priceSale price $12.88 USD -
Sikky Pro 1500 Quick Change Rear 10in with OS Giken LSD
Regular price $6,669.99 USDRegular priceSale price $6,669.99 USD -
OS Giken LSD Tuning Service
Regular price $172.96 USDRegular priceSale price $172.96 USD -
OS Giken Super Lock LSD Spec-S - Lexus IS250/IS300, Toyota Mark II/Mark X/Supra 1JZ-GTE
Regular price $1,554.80 USDRegular priceSale price $1,554.80 USD -
OS Giken TR2CD Movement Alteration Kit - Toyota 1JZ-GTE
Regular price $469.20 USDRegular priceSale price $469.20 USD -
OS Giken Super Lock LSD - Mazda RX-7 FD/FC Turbo
Regular price $1,554.80 USDRegular priceSale price $1,554.80 USD -
Fortune Auto Aluminum Damper Body Upgrade (Pair) - Not for McPherson Strut or 500 Series
Regular price $161.00 USDRegular priceSale price $161.00 USD -
Fortune Auto Subaru GC8 Rear Camber Plates
Regular price $262.00 USDRegular priceSale price $262.00 USD -
OS Giken Grand Touring SuperSingle Clutch - VQ35DE NEO (TR Cover, 215mm Disk, Release Sleeve Included)
Regular price $1,416.80 USDRegular priceSale price $1,416.80 USD -
OS Giken STR2C Clutch Release Sleeve Assembly - Mazda RX-7 13BT
Regular price $110.00 USDRegular priceSale price $110.00 USD -
Fortune Auto Accuair Management System Upgrade for Existing Air Piston Systems
Regular price $1,600.00 USDRegular priceSale price $1,600.00 USD -
Fortune Auto Swift Spring Upgrade - 8k/8k
Regular price $350.00 USDRegular priceSale price $350.00 USD -
OS Giken Grand Touring SuperSingle Clutch (GT1CD) - Acura NSX (215mm Disk)
Regular price $1,738.80 USDRegular priceSale price $1,738.80 USD -
Fortune Auto Accuair Management System Upgrade for new Air Piston systems
Regular price $1,200.00 USDRegular priceSale price $1,200.00 USD -
OS Giken Movement Alteration Kit - Mitsubishi Evo 4-9 Twin Disc
Regular price $469.20 USDRegular priceSale price $469.20 USD