GFB leichte Kurbelwellen-Riemenscheibe für Subaru Impreza WRX/STI Eng EJ20 EJ22 EJ25
Go Fast Bits Lightweight Engine Pulleys Lightweight Engine Pulleys Details Part No. 2009 Weight: 0.7 kg Dimensions: 6.5 x 3.1 x 6.9 Note: Subaru lightweight non-underdrive crank pulley (suits all EJ20, 22 and 25 engines) Description GFB lightweight underdrive pulley kit is made of anodized aircraft-grade billet 6061-T6 aluminum and offers sharper throttle response and faster acceleration. GFB pulley kits are designed to improve acceleration by reducing the rotational mass (inertia) on the crankshaft as well as parasitic loads from the driven accessories. The effect is similar to a lighter flywheel and the engine feels more lively and willing to rev. We know that people are sometimes concerned about possible adverse effects of lightweight pulleys and underdriving but .
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