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 Subaru FA20/BRZ (STD) Stopper Exhaust Valve Guide - Set of 80
Regular price $482.99Regular price$567.98-$84.99 Sale price $482.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EJ205/EJ207/EJ259 Manganese Bronze Intake Valve Guide Stopper Style - Set of 240
Regular price $1,448.99Regular price$1,703.95-$254.96 Sale price $1,448.99 -
-$254.96
Vendor:GSC Power DivisionGSC P-D Subaru EJ205/EJ207/EJ257 Manganese Bronze Exhaust Valve Guide Stopper Style - Set of 240
Regular price $1,448.99Regular price$1,703.95-$254.96 Sale price $1,448.99 -
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Vendor:GSC Power DivisionGSC P-D 2015+ Subaru Impreza WRX Chrome Polished Intake Valve - 35mm (+1mm) - Set of 50
Regular price $1,052.99Regular price$1,238.72-$185.73 Sale price $1,052.99 -
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Vendor:GSC Power DivisionGSC P-D 2015+ Subaru FA20F WRX Chrome Polished Exhaust Valve - 30mm Head +1mm - Set of 50
Regular price $1,065.99Regular price$1,253.28-$187.29 Sale price $1,065.99 -
-$184.13
Vendor:GSC Power DivisionGSC P-D 2015+ Subaru FA20F WRX Chrome Polished Intake Valve - 34mm STD Head - Set of 50
Regular price $1,048.99Regular price$1,233.12-$184.13 Sale price $1,048.99 -
-$186.09
Vendor:GSC Power DivisionGSC P-D 2015+ Subaru WRX FA20F Exhaust Valve - 29mm Head (STD) - Set of 50
Regular price $1,055.99Regular price$1,242.08-$186.09 Sale price $1,055.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 Chrome Polish Intake Valve - 36mm Head (+1mm) - Set of 50
Regular price $1,035.99Regular price$1,218.56-$182.57 Sale price $1,035.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 Chrome Polish Exhaust Valve - 30mm Head (+1mm) - Set of 50
Regular price $1,065.99Regular price$1,253.28-$187.29 Sale price $1,065.99 -
-$318.51
Vendor:GSC Power DivisionGSC P-D Subaru EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve - 33mm Head (+1mm) - Set of 50
Regular price $1,809.99Regular price$2,128.50-$318.51 Sale price $1,809.99 -
-$315.31
Vendor:GSC Power DivisionGSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve - 32mm Head - Set of 50
Regular price $1,788.99Regular price$2,104.30-$315.31 Sale price $1,788.99 -
-$179.53
Vendor:GSC Power DivisionGSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 37mm Head (+1mm) - Set of 50
Regular price $1,019.99Regular price$1,199.52-$179.53 Sale price $1,019.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 33mm Head (+1mm) - Set of 50
Regular price $1,021.99Regular price$1,201.76-$179.77 Sale price $1,021.99 -
-$178.57
Vendor:GSC Power DivisionGSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 36mm Head (STD) - Set of 50
Regular price $1,011.99Regular price$1,190.56-$178.57 Sale price $1,011.99 -
-$178.93
Vendor:GSC Power DivisionGSC P-D Subaru EJ205/EJ207/EJ257 STD Head Chrome Polished Exhaust Valve - Set of 50
Regular price $1,014.99Regular price$1,193.92-$178.93 Sale price $1,014.99 -
Sold outVendor:GSC Power Division
GSC P-D Nissan TB48 7mm Valve Stem Seal - Set of 500
Regular price $407.99Regular price$479.34-$71.35 Sale price $407.99 -
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Vendor:GSC Power DivisionGSC P-D Nissan VQ35DE Viton 6mm Valve Stem Seal - Set of 500
Regular price $334.99Regular price$393.39-$58.40 Sale price $334.99 -
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Vendor:GSC Power DivisionGSC P-D Honda D16/B18/H23 Viton 6.6mm Valve Stem Seal - Set of 500
Regular price $335.99Regular price$394.50-$58.51 Sale price $335.99 -
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Vendor:GSC Power DivisionGSC P-D Honda B/K/H Series Viton 5.5mm Valve Stem Seal - Set of 500
Regular price $323.99Regular price$380.36-$56.37 Sale price $323.99 -
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Vendor:GSC Power DivisionGSC P-D Toyota MR-2 3SGTE Viton 6mm Valve Stem Seal - Set of 500
Regular price $304.99Regular price$358.63-$53.64 Sale price $304.99 -
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Vendor:GSC Power DivisionGSC P-D Toyota 2JZ Viton 6mm Valve Stem Seal - Set of 500
Regular price $304.99Regular price$358.63-$53.64 Sale price $304.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru FA20 Viton 6mm Valve Stem Seal - Set of 500
Regular price $369.99Regular price$434.47-$64.48 Sale price $369.99 -
-$53.64
Vendor:GSC Power DivisionGSC P-D Subaru EJ Series Viton 6mm Valve Stem Seal - Set of 500
Regular price $304.99Regular price$358.63-$53.64 Sale price $304.99 -
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Vendor:GSC Power DivisionGSC P-D Mitsubishi Evo X 4B11T Valve Stem Seal - Set of 200
Regular price $523.99Regular price$616.46-$92.47 Sale price $523.99 -
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Vendor:GSC Power DivisionGSC P-D 4G63T Evo 1-9 / 90-98 DSM Viton 6.6mm Valve Stem Seal - Set of 500
Regular price $359.99Regular price$423.49-$63.50 Sale price $359.99 -
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Vendor:GSC Power DivisionGSC P-D Mitsubishi Evo 4-9 4G63 Replacement Race Balance Shaft (Shaft Only / No Cancel/Returns)
Regular price $144.99Regular price$170.50-$25.51 Sale price $144.99 -
-$209.01
Vendor:GSC Power DivisionGSC P-D 2021+ BMW M3 S58 S3 Cams 292/300 Billet w/Intake Trigger (Use w/Upgraded Turbo/Ported Head)
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
-$209.01
Vendor:GSC Power DivisionGSC P-D 2021+ BMW M3/M4 S58 S2 Cams 278/274 Billet w/Intake Trigger (Use w/Upgraded Turbo)
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
-$209.01
Vendor:GSC Power DivisionGSC P-D 2021+ BMW M3/M4 S58 S1 Cams 268/270 Billet (Use w/Upgraded Turbo)
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
-$209.01
Vendor:GSC Power DivisionGSC P-D BMW/Toyota B58 S3 Cams 292/300 Billet w/Intake Trigger (Use w/Upgraded Turbo/Ported Head)
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
-$209.01
Vendor:GSC Power DivisionGSC P-D BMW/Toyota B58 284/288 S2 Billet Camshafts
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
-$209.01
Vendor:GSC Power DivisionGSC P-D BMW/Toyota B58 272/272 S1 Billet Camshafts
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
-$122.51
Vendor:GSC Power DivisionGSC P-D Hyundai Genesis Coupe 2.0L Turbo (G4KF) S3 Cams 280/280 Billet (Upgraded Springs Required)
Regular price $698.99Regular price$821.50-$122.51 Sale price $698.99 -
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Vendor:GSC Power DivisionGSC P-D Nissan VQ35DE Gen 1 T2 Camshafts 274/274 Billet
Regular price $1,338.99Regular price$1,575.00-$236.01 Sale price $1,338.99 -
-$236.01
Vendor:GSC Power DivisionGSC P-D Nissan VQ35DE Gen 1 T1 Camshafts 264/264 Billet
Regular price $1,338.99Regular price$1,575.00-$236.01 Sale price $1,338.99
