Best Selling Products

GSC P-D 12+ Subaru BRZ / Scion FR-S Single Spring Chromoly Seat and Titanium Retainer Kit

GSC P-D 3SGTE Spring and Titanium Retainer Kit for Shim Under Bucket

GSC P-D Subaru EJ Turbo DOHC Valve Spring & Ti Retainer Kit

GSC P-D Single Beehive Spring Kit Titanium Retainers/Chromoly Seats 13-15 Scion FR-S / BRZ FA20

GSC P-D K-series Vtec K20/K24 Beehive Valve Spring and Titanium Retainer Kit Higher REV

GSC P-D Mitsubishi 4B11T Beehive Valve Springs & Ti Retainer Kit (Use w/OE Spring Seats)

GSC P-D Mitsubishi 4G63T Beehive Valve Springs & Ti Retainer Kit

GSC P-D Mitsubishi 4G63 Zero-Tick Lifters

GSC P-D B-series Vtec B16A/B17A/B18C Manganese Bronze Intake Valve Guide - Set 8

GSC P-D B-series Vtec B16A/B17A/B18C Manganese Bronze Exhaust Valve Guide - Set 8

GSC P-D Nissan VR38DETT Manganese Bronze Intake Valve Guide - Set 12

GSC P-D Nissan VR38DETT Manganese Bronze Exhaust Valve Guide - Set 12

GSC P-D 4G63 Manganese Bronze Intake Valve Guide Stopper Style- Set 8

GSC P-D 4G63 Manganese Bronze Exhaust Valve Guide Stopper Style- Set 8

GSC P-D Nissan VR38DETT Chrome Polished Super Alloy Exhaust Valve - 32.15mm Head (STD) - SET 12

GSC P-D Nissan VR38DETT 21-4N Chrome Polished Intake Valve - 37.15mm Head (STD) - SET 12

GSC P-D Subaru EJ Series EJ205/EJ207/EJ257 37mm Head (+1mm) Chrome Polished Intake Valve - Set of 8

GSC P-D Subaru EJ Series EJ205/EJ207/EJ257 33mm Head (+1mm) Chrome Polished Exhaust Valve - Set of 8

GSC P-D Subaru EJ205/EJ207/EJ257 36mm Head (STD) Chrome Polished Intake Valve - Set of 8

GSC P-D Subaru EJ205/EJ207/EJ257 32mm Head (STD) Chrome Polished Exhaust Valve - Set of 8

GSC P-D Mitsubishi Evo 9 4G63T 34mm Dia (STD) Chrome Polished Intake Valve - Set of 8

Cusco Nissan 350Z Type RS 2 Way LSD Rear *Will NOT fit open dif w/o addl parts from Nissan*

Cusco LSD RS1 Front GDB(C) GRB GVB STI Impreza

Cusco Power Brace Rear End Subaru BRZ / Toyota 86