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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-$7.70
Vendor:GSC Power DivisionGSC P-D Subaru SOHC EJ25 Intake/Exhaust Manganese Bronze Valve Guide Stopper Style - SET OF 8
Regular price $43.99Regular price$51.69-$7.70 Sale price $43.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Subaru SOHC EJ25 Intake/Exhaust Manganese Bronze Valve Guide Stopper Style - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Ford EcoBoost 3.5L 6 Cyl Manganese Bronze Intake/Exhaust Valve Guide +.003in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Ford EcoBoost 3.5L 6 Cyl Intake/Exhaust Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$11.54
Vendor:GSC Power DivisionGSC P-D EcoBoost 3.5 6Cyl Manganese Bronze Intake OR Exhaust Valve Guide - SET OF 12
Regular price $65.99Regular price$77.53-$11.54 Sale price $65.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D EcoBoost 3.5 6Cyl Manganese Bronze Intake OR Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Ford EcoBoost 2.3L 4 Cyl Manganese Bronze Intake/Exhaust Valve Guide +.003in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Ford EcoBoost 2.3L 4 Cyl Intake/Exhaust Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$7.70
Vendor:GSC Power DivisionGSC P-D EcoBoost 2.3 4Cyl Manganese Bronze Intake OR Exhaust Valve Guide - SET OF 8
Regular price $43.99Regular price$51.69-$7.70 Sale price $43.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D EcoBoost 2.3 4Cyl Manganese Bronze Intake OR Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Hyundai G4KF Theta Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Hyundai G4KF Theta Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
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Vendor:GSC Power DivisionGSC P-D Hyundai G4KF Theta Manganese Bronze Intake Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Hyundai G4KF Theta Manganese Bronze Exhaust Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Hyundai G4KF Theta Manganese Bronze Exhaust Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Hyundai G4KF Theta Manganese Bronze Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T (.003+) Intake Valve Guide Stopper Style (Single)
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Intake Valve Guide Stopper Style +.001in. OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$7.70
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Intake Valve Guide Stopper Style - Set 8
Regular price $43.99Regular price$51.69-$7.70 Sale price $43.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T (.003+) Exhaust Valve Guide Stopper Style (Single)
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T (.001+) Exhaust Valve Guide Stopper Style (Single)
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$7.70
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Exhaust Valve Guide - Set of 8
Regular price $43.99Regular price$51.69-$7.70 Sale price $43.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Manganese Bronze Intake Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Manganese Bronze Exhaust Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Manganese Bronze Exhaust Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4B11T Manganese Bronze Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$11.54Vendor:GSC Power Division
GSC P-D Subaru EG33 Manganese Bronze Intake Valve Guide - Set 12
Regular price $65.99Regular price$77.53-$11.54 Sale price $65.99 -
Sold outVendor:GSC Power Division
GSC P-D Subaru EG33 Manganese Bronze Intake Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$11.54Vendor:GSC Power Division
GSC P-D Subaru EG33 Manganese Bronze Exhaust Valve Guide - Set 12
Regular price $65.99Regular price$77.53-$11.54 Sale price $65.99 -
Sold outVendor:GSC Power Division
GSC P-D Subaru EG33 Manganese Bronze Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$5.78Vendor:GSC Power Division
GSC P-D Ski Doo 1.800in Length 0.4760in OD 0.2598in ID Intake Valve Guide Set - Set of 6
Regular price $32.99Regular price$38.77-$5.78 Sale price $32.99 -
-$5.78Vendor:GSC Power Division
GSC P-D Ski Doo 1.800in Length 0.4760in OD 0.2598in ID Exhaust Valve Guide Set - Set of 6
Regular price $32.99Regular price$38.77-$5.78 Sale price $32.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D 4G63 Manganese Bronze Exhaust Valve Guide Shorty Stopper .003in Oversize - SINGLE
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99
