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.
Skip to product grid
-
-$3.16
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 35.65mm Head +1mm OS 103.8mm Long +1.5mm Tip Intake Valve - Single
Regular price $21.99Regular price$25.15-$3.16 Sale price $21.99 -
-$82.59
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 30.15mm Head STD 103.24mm Long +1.5mm Tip Exhaust Valve - Set of 12
Regular price $467.99Regular price$550.58-$82.59 Sale price $467.99 -
-$6.81
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 30.15mm Head STD 103.24mm Long+1.5mm Tip Exhaust Valve - Single
Regular price $40.99Regular price$47.80-$6.81 Sale price $40.99 -
-$42.63
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 34.65mm Head STD 103.8mm Long +1.5mm Tip Intake Valve - Set of 12
Regular price $245.99Regular price$288.62-$42.63 Sale price $245.99 -
-$3.07
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 34.65mm Head STD 103.8mm Long +1.5mm Tip Intake Valve - Single
Regular price $21.99Regular price$25.06-$3.07 Sale price $21.99 -
-$82.18
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 31.15mm Head +1mm OS 101.74mm Long Exhaust Valve - Set of 12
Regular price $471.99Regular price$554.17-$82.18 Sale price $471.99 -
-$7.12
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 31.15mm Head +1mm OS 101.74mm Long Exhaust Valve - Single
Regular price $40.99Regular price$48.11-$7.12 Sale price $40.99 -
-$43.14
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 35.65mm Head +1mm OS 102.4mm Long Intake Valve - Set of 12
Regular price $245.99Regular price$289.13-$43.14 Sale price $245.99 -
-$3.11
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 35.65mm Head +1mm OS 102.4mm Long Intake Valve - Single
Regular price $21.99Regular price$25.10-$3.11 Sale price $21.99 -
-$82.00
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 30.15mm Head STD 101.74mm Long Exhaust Valve - Set of 12
Regular price $464.99Regular price$546.99-$82.00 Sale price $464.99 -
-$6.50
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 30.15mm Head STD 101.74mm Long Exhaust Valve - Single
Regular price $40.99Regular price$47.49-$6.50 Sale price $40.99 -
-$43.12
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 34.65mm Head STD 102.4mm Long Intake Valve - Set of 12
Regular price $244.99Regular price$288.11-$43.12 Sale price $244.99 -
-$3.02
Vendor:GSC Power DivisionGSC P-D Nissan RB26DETT 34.65mm Head STD 102.4mm Long Intake Valve - Single
Regular price $21.99Regular price$25.01-$3.02 Sale price $21.99 -
-$26.23
Vendor:GSC Power DivisionGSC P-D 2014+ BRZ/FRS FA20 Intake Valve Set +1mm (36mm) 21-4N Stainless Alloy (Set of 8)
Regular price $149.99Regular price$176.22-$26.23 Sale price $149.99 -
-$2.96
Vendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 BRZ/FRS/FT86 2014+ 21-4N Chrome Polish Intake Valve 36mm Head +1mm - (1)
Regular price $19.99Regular price$22.95-$2.96 Sale price $19.99 -
-$27.07
Vendor:GSC Power DivisionGSC P-D 2014+ BRZ/FRS FA20 Exhaust Valve Set +1mm (30mm) 23-8N Stainless Alloy
Regular price $153.99Regular price$181.06-$27.07 Sale price $153.99 -
-$2.59
Vendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 BRZ/FRS/FT86 2014+ 23-8N Chrome Polish Exhaust Valve 30mm Head +1mm - (1)
Regular price $20.99Regular price$23.58-$2.59 Sale price $20.99 -
-$26.23
Vendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 BRZ/FRS/FT86 2014+ 21-4N Chrome Polished Intake Valve 35mm STD - 8 QTY
Regular price $149.99Regular price$176.22-$26.23 Sale price $149.99 -
-$2.96
Vendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 BRZ/FRS/FT86 2014+ 21-4N Chrome Polished Intake Valve 35mm STD - 1 QTY
Regular price $19.99Regular price$22.95-$2.96 Sale price $19.99 -
-$27.07
Vendor:GSC Power DivisionGSC P-D 2014+ Subaru/Scion FA20 BRZ/FRS/FT86 23-8N Chrome Polished Exhaust Valve 29mm STD - 8 QTY
Regular price $153.99Regular price$181.06-$27.07 Sale price $153.99 -
-$2.59
Vendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 BRZ/FRS/FT86 2014+ 23-8N Chrome Polished Exhaust Valve 29mm STD - 1
Regular price $20.99Regular price$23.58-$2.59 Sale price $20.99 -
-$26.23
Vendor:GSC Power DivisionGSC P-D 12-13 Subaru/Scion BRZ/FR-S 21-4N Chrome Polished Intake Valve - 36mm Head (+1mm) - SET 8
Regular price $149.99Regular price$176.22-$26.23 Sale price $149.99 -
-$39.58
Vendor:GSC Power DivisionGSC P-D 12-13 Subaru/Scion BRZ/FR-S Chrome Polished Exhaust Valve - 30mm Head (+1mm) - SET 8
Regular price $228.99Regular price$268.57-$39.58 Sale price $228.99 -
-$25.60
Vendor:GSC Power DivisionGSC P-D 12-13 Subaru/Scion BRZ/FR-S 21-4N Chrome Polished Intake Valve - 35mm Head (STD) - SET 8
Regular price $146.99Regular price$172.59-$25.60 Sale price $146.99 -
-$38.93
Vendor:GSC Power DivisionGSC P-D 12-13 Subaru/Scion BRZ/FR-S Chrome Polished Exhaust Valve - 29mm Head (STD) - SET 8
Regular price $223.99Regular price$262.92-$38.93 Sale price $223.99 -
-$49.83
Vendor:GSC Power DivisionGSC P-D Toyota Supra/BMW Z4 B58 / BMW M3/M4 S58 Chrome Polished 30.1mm Head Intake Valve - Set of 12
Regular price $285.99Regular price$335.82-$49.83 Sale price $285.99 -
-$4.17
Vendor:GSC Power DivisionGSC P-D Toyota Supra/BMW Z4 B58 / BMW M3/M4 S58 Chrome Polished Intake Valve 30.1mm Head - Single
Regular price $24.99Regular price$29.16-$4.17 Sale price $24.99 -
-$71.74
Vendor:GSC Power DivisionGSC P-D Toyota Supra/BMW B58 / BMW M3/M4 S58 Chrome Polished 28.5mm Head Exhaust Valve - Set of 12
Regular price $407.99Regular price$479.73-$71.74 Sale price $407.99 -
-$5.66
Vendor:GSC Power DivisionGSC P-D Toyota Supra/BMW Z4 B58 / BMW M3/M4 S58 Chrome Polished 28.5mm Head Exhaust Valve - Single
Regular price $35.99Regular price$41.65-$5.66 Sale price $35.99 -
-$44.63
Vendor:GSC Power DivisionGSC P-D Nissan TB48DE 21-4N Chrome Polished Intake Valve - 39.50mm head (+1mm) - SET of 12
Regular price $255.99Regular price$300.62-$44.63 Sale price $255.99 -
-$3.11
Vendor:GSC Power DivisionGSC P-D Nissan TB48DE 21-4N Chrome Polished Intake Valve - 39.50mm head (+1mm) - Single
Regular price $22.99Regular price$26.10-$3.11 Sale price $22.99 -
-$42.53
Vendor:GSC Power DivisionGSC P-D Nissan TB48DE Stainless Steel Exhaust Valve 34.50mm Head (+1mm) - Set of 12
Regular price $245.99Regular price$288.52-$42.53 Sale price $245.99 -
-$3.06
Vendor:GSC Power DivisionGSC P-D Nissan TB48DE Stainless Steel Exhaust Valve 34.50mm Head (+1mm) - Single
Regular price $21.99Regular price$25.05-$3.06 Sale price $21.99 -
-$44.63
Vendor:GSC Power DivisionGSC P-D Nissan TB48DE Stainless Steel Intake Valve 38.50mm Head (STD) - Set of 12
Regular price $255.99Regular price$300.62-$44.63 Sale price $255.99 -
-$3.11
Vendor:GSC Power DivisionGSC P-D Nissan TB48DE Stainless Steel Intake Valve 38.50mm Head (STD) - Single
Regular price $22.99Regular price$26.10-$3.11 Sale price $22.99
