Empower Your JDM Engine With GSC Power Division Components
Discover the GSC Power Division collection at HD Werks, offering genuine, high-performance components engineered for superior engine and powertrain upgrades. These original parts, designed for racing and aftermarket tuning, deliver custom solutions that optimize power output and dynamic control. Crafted with Japanese innovation, GSC products provide authentic quality and robust performance for both track and street use. Experience the perfect blend of original design and aggressive performance. Shop our GSC Power Division range for original components that transform your vehicleís dynamics.
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          Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Evo 4-8 S3 Cam 280/280 Billet Intake Cam Only
Regular price $329.99Regular price$387.75-$57.76 Sale price $329.99 - 
-$57.76
          Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Evo 4-8 S3 Cam 280/280 Billet Exhaust Cam Only
Regular price $329.99Regular price$387.75-$57.76 Sale price $329.99 - 
-$57.76
          Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63 EVO 4-8 S2 Intake Cam Billet
Regular price $329.99Regular price$387.75-$57.76 Sale price $329.99 - 
-$57.76
          Vendor:GSC Power DivisionGSC P-D Mitsubishi Evo 4-8 4G63T 274/272 S2 Billet Exhaust Side Camshaft (Exhaust Cam Only)
Regular price $329.99Regular price$387.75-$57.76 Sale price $329.99 - 
-$111.31
          Vendor:GSC Power DivisionGSC P-D Mitsubishi Evolution 4-8 4G63T Stroker R3 Camshafts Billet
Regular price $635.99Regular price$747.30-$111.31 Sale price $635.99 - 
-$114.51
          Vendor:GSC Power DivisionGSC Mitsubishi Evolution 4-8 4G63T Billet R1 Camshafts 268/268
Regular price $653.99Regular price$768.50-$114.51 Sale price $653.99 - 
-$111.31
          Vendor:GSC Power DivisionGSC P-D Mitsubishi EVO 8 4G63 L3 Billet Camshaft Set
Regular price $635.99Regular price$747.30-$111.31 Sale price $635.99 - 
-$57.76
          Vendor:GSC Power DivisionGSC P-D 4G63T EVO 1-3/ DSM 90-98 Billet Cams 280/280 Exhaust Cam Only
Regular price $329.99Regular price$387.75-$57.76 Sale price $329.99 - 
-$111.31
          Vendor:GSC Power DivisionGSC P-D Mitsubishi Evo 1-3 4G63T R2 Stroker Cams 274/274 Billet (Beehive Spring/Retainer Kit Req)
Regular price $635.99Regular price$747.30-$111.31 Sale price $635.99 - 
-$111.82
          Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT/RB26 Cylindrical Valve Spring Kit
Regular price $636.99Regular price$748.81-$111.82 Sale price $636.99 - 
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          Vendor:GSC Power DivisionGSC P-D Subaru EZ36 Valve Spring Seat and Titanium Retainer Kit
Regular price $468.99Regular price$551.63-$82.64 Sale price $468.99 - 
-$49.32Vendor:GSC Power Division
GSC P-D 3SGTE Spring and Titanium Retainer Kit for Shim Under Bucket
Regular price $282.99Regular price$332.31-$49.32 Sale price $282.99 - 
-$49.32Vendor:GSC Power Division
GSC P-D 3SGTE Spring and Titanium Retainer Kit for Shimless and Shimover Bucket
Regular price $282.99Regular price$332.31-$49.32 Sale price $282.99 - 
-$74.48Vendor:GSC Power Division
GSC P-D Toyota 2JZGTE/2JZGE/VVTI Variants Valve Spring Kit (set of 24)
Regular price $423.99Regular price$498.47-$74.48 Sale price $423.99 - 
-$177.03
          Vendor:GSC Power DivisionGSC P-D Toyota 2JZ Dual Valve Spring and Ti Retainer Kit
Regular price $1,006.99Regular price$1,184.02-$177.03 Sale price $1,006.99 - 
-$78.95
          Vendor:GSC Power DivisionGSC P-D Subaru FA20 WRX/BRZ/FRS Dual Cylindrical Valve Spring Kit
Regular price $449.99Regular price$528.94-$78.95 Sale price $449.99 - 
-$97.01
          Vendor:GSC Power DivisionGSC P-D 2017+ Audi RS3 DAZA Beehive Valve Spring and Ti Retainer Kit (60PSI Max Boost)
Regular price $552.99Regular price$650.00-$97.01 Sale price $552.99 - 
-$173.01
          Vendor:GSC Power DivisionGSC P-D Porsche 991 Turbo Conical Spring Set
Regular price $981.99Regular price$1,155.00-$173.01 Sale price $981.99 - 
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          Vendor:GSC Power DivisionGSC P-D Porsche GT3/GT3 (991) Single Conical Valve Spring Ti Retainer Steel Spring Seat Kit
Regular price $981.99Regular price$1,155.00-$173.01 Sale price $981.99 - 
-$104.01
          Vendor:GSC Power DivisionGSC P-D Toyota Supra/BMW Z4 B58 Beehive Valve Spring and Ti Retainer Kit
Regular price $595.99Regular price$700.00-$104.01 Sale price $595.99 - 
Sold outVendor:GSC Power Division
GSC P-D Nissan GTR VR38DETT Single Conical Valve Spring & Titanium Retainer Kit (Race Only)
Regular price $1,012.99Regular price$1,191.47-$178.48 Sale price $1,012.99 - 
-$143.01
          Vendor:GSC Power DivisionGSC P-D Nissan TB48 Ti Retainer Steel Spring Seat HP Conical Valve Spring Kit
Regular price $810.99Regular price$954.00-$143.01 Sale price $810.99 - 
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          Vendor:GSC Power DivisionGSC P-D Toyota 2JZ-GTE Extreme Pressure Single Conical Valve Spring and Ti Retainer Kit
Regular price $807.99Regular price$950.00-$142.01 Sale price $807.99 - 
-$145.36
          Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT Shimless Conical Valve Spring & Ti Retainer Kit ( Max Boost PSI 50)
Regular price $824.99Regular price$970.35-$145.36 Sale price $824.99 - 
-$140.01
          Vendor:GSC Power DivisionGSC P-D Nissan VR30DDTT HP Conical Valve Spring Ti Retainer & Seat Kit (10500RPM/55PSI Max)
Regular price $794.99Regular price$935.00-$140.01 Sale price $794.99 - 
-$140.01
          Vendor:GSC Power DivisionGSC P-D Nissan VR30DDTT HP Conical Valve Spring Ti Retainer & Seat Kit (9500RPM/40PSI Max)
Regular price $794.99Regular price$935.00-$140.01 Sale price $794.99 - 
-$143.01
          Vendor:GSC Power DivisionGSC P-D Nissan TB48 Ti Retainer Steel Spring Seat Conical Valve Spring Kit
Regular price $810.99Regular price$954.00-$143.01 Sale price $810.99 - 
-$91.25
          Vendor:GSC Power DivisionGSC P-D Subaru EJ Series Conical Valve Spring and Ti Retainer Kit
Regular price $517.99Regular price$609.24-$91.25 Sale price $517.99 - 
-$145.36
          Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT/RB26 Conical Valve Spring Kit
Regular price $824.99Regular price$970.35-$145.36 Sale price $824.99 - 
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          Vendor:GSC Power DivisionGSC P-D Subaru EJ Series Dual Conical Valve Spring Kit
Regular price $640.99Regular price$753.24-$112.25 Sale price $640.99 - 
-$91.25
          Vendor:GSC Power DivisionGSC P-D Subaru EJ Single Conical Valve Spring Titanium Retainer & Spring Seat Kit
Regular price $517.99Regular price$609.24-$91.25 Sale price $517.99 - 
-$82.86
          Vendor:GSC Power DivisionGSC P-D Toyota 3SGTE High Pressure Conical Valve Spring Kit w/Ti Retainer for Shimless/Shim-Over
Regular price $470.99Regular price$553.85-$82.86 Sale price $470.99 - 
-$148.76
          Vendor:GSC Power DivisionGSC P-D Nissan VR38DETT High Pressure Conical Valve Spring Kit w/ Titanium Retainer
Regular price $843.99Regular price$992.75-$148.76 Sale price $843.99 - 
-$148.76
          Vendor:GSC Power DivisionGSC P-D Nissan VR38DETT Conical Valve Spring Kit w/ TVS1903 Conical Spring
Regular price $843.99Regular price$992.75-$148.76 Sale price $843.99 - 
-$82.86
          Vendor:GSC Power DivisionGSC P-D Toyota 3SGTE Conical Valve Spring and Ti Retainer Kit (Use w/ Shim Over/Shimless Bucket)
Regular price $470.99Regular price$553.85-$82.86 Sale price $470.99