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
-
-$7.70
Vendor:GSC Power DivisionGSC P-D Honda Civic Type-R K20C1 (STD) Intake Valve Guide - Set of 8
Regular price $43.99Regular price$51.69-$7.70 Sale price $43.99 -
-$11.54Vendor:GSC Power Division
GSC P-D Honda J35 Manganese Bronze Intake Valve Guide - Set of 12
Regular price $65.99Regular price$77.53-$11.54 Sale price $65.99 -
-$11.54Vendor:GSC Power Division
GSC P-D Honda J35 Manganese Bronze 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 Toyota 2JZ Exhaust Valve Guide for 6.6mm Valve Stem .003in Oversize - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Toyota 2JZ Exhaust Valve Guide for 6.6mm Valve Stem .001in Oversize - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$11.54
Vendor:GSC Power DivisionGSC P-D Toyota 2JZ Exhaust Valve Guide for 6.6mm Valve Stem - Set of 12
Regular price $65.99Regular price$77.53-$11.54 Sale price $65.99 -
-$11.54
Vendor:GSC Power DivisionGSC P-D Ford Raptor 3.5L Ecoboost Intake/Exhaust Valve Guide Set w/ Stopper - Set of 12
Regular price $65.99Regular price$77.53-$11.54 Sale price $65.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Ford Raptor 3.5L Ecoboost Intake/Exhaust Valve Guide w/ Stopper - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$15.75
Vendor:GSC Power DivisionGSC P-D 03-07 Dodge Viper 2.615in TL 0.5145in OD 0.311in ID Intake/Exhaust Valve Guide -Set of 10
Regular price $90.99Regular price$106.74-$15.75 Sale price $90.99 -
-$1.09
Vendor:GSC Power DivisionGSC P-D 03-07 Dodge Viper (STD) 2.615in TL 0.5145in OD 0.311in ID Intake/Exhaust Valve Guide -Single
Regular price $9.99Regular price$11.08-$1.09 Sale price $9.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4575in OD 0.2756in ID 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 Toyota 1FZ 1.650in Length 0.4555in OD 0.2756in ID Intake Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$11.54
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ Manganese Bronze Intake Valve Guide - Set of 12
Regular price $65.99Regular price$77.53-$11.54 Sale price $65.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4545in OD 0.2756in ID 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 Toyota 1FZ 1.650in Length 0.4575in OD 0.2756in ID Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4555in OD 0.2756in ID Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$11.54
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ Manganese Bronze Exhaust Valve Guide - Set of 12
Regular price $65.99Regular price$77.53-$11.54 Sale price $65.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4545in OD 0.2756in ID 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 FA20 BRZ/FRS/FT86 Intake Valve Guide Oversized +.003in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D FA20 BRZ/FRS/FT86 Intake Valve Guide Oversized +.001in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$7.70
Vendor:GSC Power DivisionGSC Subaru FA20/BRZ (STD) Stopper Intake Valve Guide - Set of 8
Regular price $43.99Regular price$51.69-$7.70 Sale price $43.99 -
-$0.72
Vendor:GSC Power DivisionGSC Subaru FA20/BRZ +.003in Oversize Stopper Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC Subaru FA20/BRZ +.001in Oversize Stopper Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$7.70
Vendor:GSC Power DivisionGSC Subaru FA20/BRZ (STD) Stopper Exhaust Valve Guide - Set of 8
Regular price $43.99Regular price$51.69-$7.70 Sale price $43.99 -
-$11.54Vendor:GSC Power Division
GSC P-D Porsche 992 GT3/CUP Manganese Bronze Intake/Exhaust Standard Style 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 Ford Mustang 5.0L Coyote Manganese Bronze Intake/Exhaust Valve Guide +.003in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Ford Mustang 5.0L Coyote Intake/Exhaust Valve Guide Oversized +.001in OD - Set of 16
Regular price $87.99Regular price$103.37-$15.38 Sale price $87.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Ford Mustang 5.0L Coyote Intake/Exhaust Valve Guide Oversized +.001in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$15.38
Vendor:GSC Power DivisionGSC P-D Ford Coyote 5.0L Manganese Bronze Intake/Exhaust Valve Guide Set - Set of 16
Regular price $87.99Regular price$103.37-$15.38 Sale price $87.99 -
-$1.22
Vendor:GSC Power DivisionGSC P-D 03-04 Ford Cobra Intake/Exhaust Valve Guide Oversize +.001in - Single
Regular price $7.99Regular price$9.21-$1.22 Sale price $7.99 -
-$21.03
Vendor:GSC Power DivisionGSC P-D 03-04 Ford Cobra Smooth Style Intake/Exhaust Valve Guide Set - Set of 16
Regular price $120.99Regular price$142.02-$21.03 Sale price $120.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Ford Mustang GT 5.4L DOHC 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 Ford Mustang GT 5.4L DOHC Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$15.38
Vendor:GSC Power DivisionGSC P-D Ford Mustang GT/GT500 5.4L DOHC Manganese Bronze Intake Valve Guide - Set of 16
Regular price $87.99Regular price$103.37-$15.38 Sale price $87.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Ford Mustang GT 5.4L DOHC Manganese Bronze Exhaust Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99
