View our Specials! Coupon Code: SaveIn2026
Looking to upgrade or modify your Mitsubishi Eclipse with aftermarket parts from GSC Power Division? At Tunersports.com we carry a great selection of their parts for your vehicle.
From engine components, balance shafts, engine components or valves we have 23 parts available for your Eclipse, all with free shipping to the Continental US 48 States.
For more information on GSC Power Division, you can visit the official GSC Power Division website.
 IN STOCK - LOW GSC Power Division Spring Seat Kits 4041-16GSC P-D 4G63T .035in over OEM Chromoly CNC Spring Seat for Mitsubishi - Set of 16 $69.65
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 IN STOCK GSC Power Division OEM Valve Seat Sets 1004GSC P-D 4G63T Valve Seat OEM Replacement (Set of 16) $45.63
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 OUT OF STOCK GSC Power Division Billet S2 Camshaft Kits 7003S2GSC P-D Mitsubishi Evo 1-3 / 90-99 DSM 4G63T S2 Cams 274/274 Billet $635.21
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 OUT OF STOCK GSC Power Division Billet S1 Camshaft Kits 7003S1GSC P-D 4G63T EVO 1-3/ DSM 90-99 S1 Cams 268/268 Billet $635.21
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OUT OF STOCK GSC Power Division Billet S3 Camshaft Kits 7003S3GSC P-D 4G63T EVO 1-3/ DSM 90-98 Billet Cams 280/280 $635.21
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 OUT OF STOCK GSC Power Division Valve Spring Kits 5041GSC P-D Mitsubishi 4G63T Beehive Valve Springs & Ti Retainer Kit $399.92
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 IN STOCK GSC Power Division Exhaust Valve Sets +1mm 2007-8GSC P-D 4G63T Evo1-9/DSM 90-98 Chrome Polished Super Alloy Exhaust Valve - 31.5mm Head(+1mm) -SET 8 $270.28
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 IN STOCK GSC Power Division Exhaust Valve Sets -STD 2005-8GSC P-D 4G63T Evo1-9/DSM 90-98 Chrome Polished Super Alloy Exhaust Valve - 30.5mm Head(STD) - SET 8 $270.28
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 OUT OF STOCK GSC Power Division Valve Spring Kits 5040GSC P-D Mitsubishi Evolution 1-9 4G63 Beehive Valve Springs & Ti Retainer Kit $399.92
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 IN STOCK - LOW GSC Power Division Valve Spring Sets 5039GSC P-D 4G63T EVO 8-9 Stage 1 Beehive Valve Springs (Use Factory Retainers and Spring Seats) $216.05
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 $191.20
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 IN STOCK GSC Power Division Valve Stem Seal Sets 1002GSC P-D 4G63T Evo 1-9 / 90-98 DSM Viton 6.6mm Valve Stem Seal Set $43.46
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 IN STOCK GSC Power Division Keeper Sets 1003GSC P-D Mitsubishi 4G63T Evo 1-9 / 90-98 DSM Valve Keeper (Set Set of 32) $54.95
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 IN STOCK GSC Power Division Intake Valve Sets -STD 2002-8GSC P-D Mitsubishi Evo 9 4G63T 34mm Dia (STD) Chrome Polished Intake Valve - Set of 8 $174.14
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 IN STOCK GSC Power Division Exhaust Valve Guide Sets 3003-8GSC P-D 4G63 Manganese Bronze Exhaust Valve Guide Stopper Style- Set 8 $70.28
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IN STOCK GSC Power Division Intake Valve Guide Sets 3004-8GSC P-D 4G63 Manganese Bronze Intake Valve Guide Stopper Style- Set 8 $70.28
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IN STOCK GSC Power Division Exhaust Valve Sets -STD 2001-8GSC P-D 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Exhaust Valve - 30.5mm Head (STD) - SET 8 $172.44
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IN STOCK GSC Power Division OEM Valve Seat Sets 1004GSC P-D 4G63T Valve Seat OEM Replacement (Set of 16) $45.63
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IN STOCK GSC Power Division Exhaust Valve Sets -STD 2005-8GSC P-D 4G63T Evo1-9/DSM 90-98 Chrome Polished Super Alloy Exhaust Valve - 30.5mm Head(STD) - SET 8 $270.28
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 IN STOCK GSC Power Division Exhaust Valve Guide Sets 3005-8GSC P-D 4G63 Manganese Bronze Exhaust Valve Guide Shorty Stopper- Set 8 $70.28
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