View our Specials! Coupon Code: SaveIn2026
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Types of Driving: Street, Drag, Pulling, Autocross
SPEC billet flywheels are manufactured and developed for specific driving environments and recommended based on how each car reacts to changes in rotating mass. SPEC flywheels are NOT a one-fits-all lightweight flywheel, though they can be used for an array of driving habits and racing/high performance applications. Consult a SPEC representative for a recommendation. Manufactured from only the highest quality steel and aluminum, they are the only flywheels on the market manufactured to a .001 machine tolerance, guaranteeing a flat seating surface for the clutch and smooth rotational qualities for perfect balance and extended engine life.
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Sorry we do not have fitment information available for this part number. Contact us for any fitment questions. | |||||
WARNING: Cancer & Reproductive Harm www.p65warnings.ca.gov IN STOCK - LOW Fidanza 126991Fidanza Aluminum Flywheels -Import Fidanza 55-59 MG MGA Lightweight Flywheel with Replaceable Friction Plate $551.30
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 IN STOCK XCLUTCH XFSU003CLXCLUTCH Flywheel - Chromoly XClutch 13-21 Subaru WRX STi Type RA 2.5L Lightweight Chromoly Flywheel $467.32
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 $383.52
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 $291.00
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 IN STOCK - LOW SPEC SB64SSPEC Steel Flywheels Spec BMW 323/325/328/330/525/528/530/M3/X5/Z3/Z4 Steel Flywheel $584.10
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 IN STOCK - LOW Fidanza 161315Fidanza Aluminum Flywheels -Import Fidanza 2016 Mazda Miata 2.0L Aluminum Flywheel $512.39
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 IN STOCK Competition Clutch 2-669-STUCompetition Clutch Steel Flywheels Competition Clutch 2000-2009 Honda S2000 9.25lb Steel Flywheel (does not incl release bearing) $395.00
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 IN STOCK Clutch Masters FW-725-SFClutch Masters Steel Flywheels Clutch Masters 90-92 Toyota MR-2 2.0L Eng T (From 1/90 to 12/91) / 90-94 Toyota Celica 2.0L Eng T (F $416.08
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For more information on SPEC part number SD37A, you can visit the official SPEC website.
