SPEC Single Mass Conversion Clutch Kits BMW E82 135i E90 E92 335i Variations:SPEC Single Mass Conversion Stage 3 Clutch E90 E92 335i The rule of thumb is

The rule of thumb is that each pound of weight taken off the engines rotating assembly is worth approximately 2

As tested by Injen the FR-S/BRZ/T86 intake produced gains up to 12 hp and 9ft

older vehicles such as the Honda Civic (EJ9) can be lowered between 40-75mm with ST XTA coilovers

Will reduce turbo lag and provides more power and the best economy in a good condition engine

There's truly no better sounding or better quality system in the world

SPEC Single Mass Conversion Clutch Kits BMW E82 135i E90 E92 335i Variations:SPEC Single Mass Conversion Stage 3 Clutch E90 E92 335i The rule of thumb isSPEC clutch kits for the (07 up) BMW 135 335 are some of the highest quality performance clutch kits on the market. SPEC makes a high performance clutch option for you; whether your BMW is a bone stock daily driver or a fully modified track beast. The clutch kits listed on this page are full single mass flywheel conversion kits and are not compatible with the stock dual mass flywheel. All kits require the purchase of SPEC flywheel SB53A 2. Every SPEC