2008 BMW 135i E88 Convertible

  The BMS brace attaches the rear differential to the subframe allowing better launches, less wheel hop, and a more stable feeling rear chassis. Ou...

ACF N54 Single Turbo Conversion Oil & Coolant Fittings APPLICATIONS • All N54 BMW with single turbo conversion SPECIFICATIONS • Perfect fit and...

The ultimate fueling solution for your BMW. Adds six supplemental low pressure fuel injectors allowing fueling of up to 800whp using straight E85 f...

The ultimate fueling solution for your BMW now available in a high quality low frills low cost package. Adds six supplemental low pressure fuel inj...

Fuel-It! Stage 3 Bucketless upgrade options for the E-chassis 135 and 335 N54 and N55 Platforms! For those already running our Stage 2 Bucketless...

Fuel-It! N54/N55 fuel pump upgrades! E Chassis 135i, 335i, and X1  Stage 1 LPFP Upgrades!  These kits are designed to be installed inline with ...

If your current Low Pressure Fuel Pump (LPFP) is struggling to keep up, is old and tired, or you need an E85 compatible pump assembly, this is th...

Quicker Shifts Instantly for Manual Transmissions A must have for your stick shift BMW, the BMS clutch valve replaces your lazy factory clutch dela...

NOTE:  This upgrade requires you to send your stock pump in to be upgraded! For those of you looking to upgrade your pump assembly but want to sa...

 Up to 330% more than stock! This is a complete plug and play Low Pressure Fuel Pump (LPFP) upgrade that replaces your weak stock LPFP as...

Our DW400 pumps are covered by a 3 year limited warranty!  This is a complete plug and play solution to replace your stock Low Pressure Fuel Pump...

This add on kit for BMW N54 engines allows your JB4 to "2step" the engine (cycle power to the coils) to build boost when not under load. Useful as ...

Includes a programmed chip and wiring harness to allow on-the-fly anti-lag. Select a gear, hold down the volume button, floor the car, and once boo...

OE BMW fuel pump screw cap/lock ring for 1 series and 3 series cars OE BMW part #16116763852 Only fits E chassis BMW cars E82, E88, E90, E91, E92,...

Deliver consistent, reliable power run after run with the BMS N54/N55 Upgraded Intercooler  The BMS N54 N55 replacement E Chassis intercooler upgr...

Deliver consistent, reliable power run after run The last intercooler you'll ever buy for your car. Good for over 1000whp the BMS 7.5" High Density...

KW Variant 3: Race technology for the road, with adjustable compression and rebound dampening.State of the art motorsport technology enables bett...

KW Variant 3: Race technology for the road, with adjustable compression and rebound dampening.State of the art motorsport technology enables bett...

Check out our ignition coil testing methods and results here! Compared to the stock N54/N55 ignition coils the B58 coils are capable of producing 2...

The N54 PCV Valve is an upgraded replacement PCV valve for your N54 BMW engine and is strongly recommended for your high-performance (or higher mil...

KW DDC2008-2013 BMW 1series E88, ConvertibleWireless control module sold seperately Please specify your vehicle to get more details and see if t...

Upgrade from your stock intercooler to the MAD stepped core intercooler for maximum performance and reliability! The stock BMW intercooler is sm...

Upgrade from the stock BMW n54 charge pipe to the MAD N54 charge pipe for maximum airflow and reliability! The stock BMW N54 charge pipe is plasti...

Upgrade from your stock intercooler to the MAD Race intercooler for maximum performance and reliability! The stock BMW intercooler is small, inef...