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full 3" straight-through design with a resonated mid section and tailored mufflers in the rear
featuring easily accessible knobs for precise compression and rebound adjustments
Race-only clutch type
These extenders make damping adjustment much easier
GSC Billet Core Intake / Exhaust Cams - 2008-2021 Subaru STI pdm_crossmember-braces full 3" straight-through design withThe Billet Core Intake Exhaust Camshafts will improve the power and the performance in the Subaru STI. GSC Billet Core Intake Exhaust Cams 2008+ Subaru STI SPECS: 272 Intake duration 272 Exhaust duration 10. 80mm Peak lift intake 10. 50mm Peak lift exhaust Duration @ . 040" Valve Lift intake: 233 Duration @ . 040" Valve Lift exhaust: 233 Centerline @ Peak Lift intake: 125 Centerline @ Peak Lift exhaust: 128 Will support 500+ WHP FOR THOSE LOOKING TO
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