![Dinan Underdrive Pulley Kit | E90 · E92 · E93 M3 | 4.0L V8 [S65] MK2 TT (8J) 3.2L VR6 GFB G-Force III Electronic Boost](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/DinanUnderdrivePulleyKitE90_E92_E93M34.0LV8_S65.png?v=1742081975)
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GFB G-Force III Electronic Boost Controller
The use of billet aluminum instead of cast and an increased minimum thickness creates a mount that is dramatically stronger than the cast stock mount
turning on 1st gear downshift without coming to a full stop
Cast aluminum inlet adapter
Integrated Engineering RS3 Exhaust System to Stock Downpipe Y-Pipe Adapter
Dinan Underdrive Pulley Kit | E90 · E92 · E93 M3 | 4.0L V8 [S65] MK2 TT (8J) 3.2L VR6 GFB G-Force III Electronic BoostDinan's underdrive pulley is designed to increase power (11 horsepower 8400 RPM and 7 lb ft torque 8400 RPM on a stock car) by reducing parasitic drag on the engine from spinning the alternator, water pump and AC compressor. This is accomplished by slowing down the speed of these accessory drives that rob power from your engine. Dinan has done extensive hot weather testing so you can be assured that your engine is safe. The Dinan underdrive pulley is
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