Upgrade Your Car with Supertech Performance Parts
Revitalize your vehicle with our Supertech collection, offering high-performance parts engineered for racing excellence. Crafted with original quality and genuine Japanese design, these components provide authentic aftermarket upgrades that improve engine dynamics and overall performance. Supertech parts are built for durability and innovative performance enhancements, making them ideal for enthusiasts who demand original quality. With a focus on precise engineering and cutting-edge design, our collection delivers true racing performance. Shop at HD Werks for premium Supertech products that set new standards in performance and quality.
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Vendor:Supertech
Supertech Subaru EJ20/25 70lbs/35.5mm Dual Valve Spring Kit (w/Steel Retainers)
Regular price $529.99Regular price$661.54-$131.55 Sale price $529.99 -
Vendor:Supertech
Supertech Subaru WRX/STi 16V Dual Valve Spring Kit
Regular price $547.99Regular price$683.71-$135.72 Sale price $547.99 -
Vendor:Supertech
Supertech Nissan RB26DET 24V Dual Valve Spring Kit
Regular price $882.99Regular price$1,102.84-$219.85 Sale price $882.99 -
Vendor:Supertech
Supertech Nissan SKYLINE RB25 DOHC 24V (w/Solid Lifters) Dual Valve Spring Kit
Regular price $882.99Regular price$1,102.84-$219.85 Sale price $882.99 -
Vendor:Supertech
Supertech Mitsubishi 420A Dual Valve Spring Kit
Regular price $588.99Regular price$735.22-$146.23 Sale price $588.99 -
Vendor:Supertech
Supertech Nissan CA18DET 16V Dual Valve Spring Kit
Regular price $547.99Regular price$683.71-$135.72 Sale price $547.99 -
Vendor:Supertech
Supertech Nissan VQ35DE 24V/VK56 32V Dual Valve Spring Kit
Regular price $1,176.99Regular price$1,470.44-$293.45 Sale price $1,176.99 -
Vendor:Supertech
Supertech Nissan VQ35DE 24V/VK56 32V Dual Valve Spring Kit
Regular price $820.99Regular price$1,025.51-$204.52 Sale price $820.99 -
Vendor:Supertech
Supertech Nissan VQ35DE 24V/VK56 32V Dual Valve Spring Kit
Regular price $820.99Regular price$1,025.51-$204.52 Sale price $820.99 -
Vendor:Supertech
Supertech Toyota 3SGTE Dual Valve Spring Kit
Regular price $494.99Regular price$618.40-$123.41 Sale price $494.99 -
Vendor:Supertech
Supertech Toyota 3SGTE Dual Valve Spring Kit (Flatten Valve Guide Boss for InnerSpring to 0160in)
Regular price $588.99Regular price$735.22-$146.23 Sale price $588.99 -
Vendor:Supertech
Supertech 02-07 Mini Cooper 1.6L Dual Valve Spring Kit
Regular price $589.99Regular price$736.44-$146.45 Sale price $589.99 -
Vendor:Supertech
Supertech Honda Integra LS B18A/B Dual Valve Spring Kit
Regular price $588.99Regular price$735.22-$146.23 Sale price $588.99 -
Vendor:Supertech
Supertech Subaru EJ25 Dual Valve Spring Kit
Regular price $618.99Regular price$773.01-$154.02 Sale price $618.99 -
Vendor:Supertech
Supertech Nissan GTR VR38DETT 24V Dual Valve Spring Kit
Regular price $882.99Regular price$1,102.84-$219.85 Sale price $882.99 -
Vendor:Supertech
Supertech Ford ECOBOOST 2.0L/2.3L Dual Valve Spring Kit (Use with OEM seal)
Regular price $588.99Regular price$735.22-$146.23 Sale price $588.99 -
Vendor:Supertech
Supertech Renault FR4 RS 2.0L 16V Dual Valve Spring Kit
Regular price $588.99Regular price$735.22-$146.23 Sale price $588.99 -
Vendor:Supertech
Supertech GM ECOTEC 2.0L Dual Valve Spring Kit
Regular price $588.99Regular price$735.22-$146.23 Sale price $588.99 -
Vendor:Supertech
Supertech Toyota Supra 2JZ-GE/2JZ-GTE Conical Single Valve Spring Kit
Regular price $762.99Regular price$953.16-$190.17 Sale price $762.99 -
Vendor:Supertech
Supertech Subaru WRX/STi 16V Single Beehive Valve Spring Kit
Regular price $596.99Regular price$745.53-$148.54 Sale price $596.99 -
Vendor:Supertech
Supertech Subaru WRX/STi 16V Single Beehive Valve Spring Kit
Regular price $596.99Regular price$745.53-$148.54 Sale price $596.99 -
Vendor:Supertech
Supertech Subaru WRX/STi 16V Single Beehive Valve Spring Kit
Regular price $596.99Regular price$745.53-$148.54 Sale price $596.99 -
Vendor:Supertech
Supertech Toyota 2JZ Dual Valve Spring Kit
Regular price $762.99Regular price$953.37-$190.38 Sale price $762.99 -
Vendor:Supertech
Supertech Nissan 300ZX VG30D Dual Valve Spring Kit
Regular price $820.99Regular price$1,025.51-$204.52 Sale price $820.99 -
Vendor:Supertech
Supertech Toyota 2JZ Dual Valve Spring Kit
Regular price $820.99Regular price$1,025.51-$204.52 Sale price $820.99 -
Vendor:Supertech
Supertech Opel/Vauxhall Z20LET 16V Dual Valve Spring Kit
Regular price $588.99Regular price$735.22-$146.23 Sale price $588.99 -
Vendor:Supertech
Supertech Opel Z16/Z18 LER/ A18XER 16V Dual Valve Spring Kit (Use Factory Seat)
Regular price $569.99Regular price$712.21-$142.22 Sale price $569.99 -
Vendor:Supertech
Supertech Toyota 1GR-FE 4.0L V6 24V Dual Valve Spring Kit
Regular price $882.99Regular price$1,102.84-$219.85 Sale price $882.99 -
Vendor:Supertech
Supertech Subaru EJ20/25 58lbs/36mm Dual Spring Kit
Regular price $574.99Regular price$718.34-$143.35 Sale price $574.99 -
Vendor:Supertech
Supertech Polaris XP900 Dual Valve Spring Kit
Regular price $247.99Regular price$309.21-$61.22 Sale price $247.99 -
Vendor:Supertech
Supertech Nissan CA18DET 16V Dual Valve Spring Kit
Regular price $547.99Regular price$683.71-$135.72 Sale price $547.99 -
Vendor:Supertech
Supertech Nissan VK56 Dual Valve Spring Kit
Regular price $1,175.99Regular price$1,468.66-$292.67 Sale price $1,175.99 -
Vendor:Supertech
Supertech Nissan VQ35DET Dual Valve Spring Kit
Regular price $820.99Regular price$1,025.51-$204.52 Sale price $820.99 -
Vendor:Supertech
Supertech Nissan VR38DETT 3.8L 24V Beehive Valve Spring Kit
Regular price $882.99Regular price$1,102.84-$219.85 Sale price $882.99 -
Vendor:Supertech
Supertech Nissan GTR VR38DETT 24V Dual Valve Spring Kit
Regular price $882.99Regular price$1,102.84-$219.85 Sale price $882.99