Dinan Underdrive Pulley Kit | E90 · E92 · E93 M3 | 4.0L V8 [S65]

Thoughtful delivery service

Easy 30 day returns

Certified Reviews

Description

Dinan Underdrive Pulley Kit | E90 · E92 · E93 M3 | 4.0L V8 [S65]Dinan'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

Front - Large 32mm size (stock bar is 24

0T Downpipe with the ARM B9 Midpipes creates an exotic and intoxicating exhaust note that will leave you grinning ear to ear

and robust 12

Crackles enabled for free revving in park or neutral

and provides increased performance and reliability by upgraded each of the factory components

Thanks to its high MoS2 content and special additives

When running turbo upgrades

This turbine gives much lower back pressure and keeps EGT lower compared to stock K04 turbine or clipped stock types other companies are still using

so you can get the most out of your EA839

We also replace the original thrust bearing for a TTE upgrade bearing

and CNC machined billet compressor wheel

We offer these covers in raw aluminum or powder coated