Stage 1
Bimmerfest $99 Special!
Regular price: $179

A lower boost version of the JB, offering 20-30 rear wheel horsepower and 30-40 rear wheel torque gains. Installation is slightly easier than the Stage 2, and peak boost is limited to 9.75 psi. Does not require solenoid bypass. This is how the car should have come from the factory! Safe for use with the March 2008 and later v81 ECU!

Stage 2
$379

Our most popular tune, offering 40+ rear wheel horsepower and 50+ rear wheel torque gains on 91 octane, or 50+ rear wheel horsepower 60+ rear wheel torque gains on 93 octane when coupled with the hot pill. Peak boost is set at 11psi and tapers at high RPM for long compressor life, and air/fuel ratios are remapped for maximum performance. Over 500 units sold. Safe for use with the March 2008 and later v81 ECU!

93/94 octane "Hot Pill"
$15 Shipped

For those running 93 or higher octane the hot pil will add an additional 8-13 real wheel horsepower and 10-20 rear wheel torque to the JB2. May not be suitable for all climates and fuels. In the unlikely event that you experience a safety or 'limp' code discontinue use. Not suggested for the March 2008 and later v81 ECU.

BMS Filter Kit
$119

Offering 8-15 rear wheel horsepower gains, the BMS filter replaces your restrictive factory airbox assembly with a custom K&N brand filter. Features ~20% more filter surface area and much better sound than the factory airbox, and is designed to take full advantage of the factory cold air inlet. Fits BMW 135 / 335 / 535. Safe for use with the March 2008 and later v81 ECU! Click for video / soundclips!

Boost Solenoid Kit
$20 Shipped
 

Allows use of both boost solenoids with the Stage 2 tune, providing smoother performance and quicker spool time. May slightly reduce partial throttle fuel economy. Safe for use with the March 2008 and later v81 ECU!

"X" Upgrade
$179

The ultimate upgrade for the more aggressive enthusiast. The X allows quick adjustment of the JB2 base boost settings from 11psi up to 13psi (0-2 hot pills), and enabling of the race gas map for boost levels up to 16psi. All without a cumbersome laptop PC. Just turn the knob to adjust boost to your specific needs and the X will take care of the rest. Setting the boost level too high for your octane and/or supporting modifications may result in safety or 'limp' codes. Please follow all guidelines when using the X upgrade and if you experience safety codes or any other issues turn the boost level down. Not suggested for the March 2008 and later v81 ECU.

BMS Downpipe Fix
$119

Eliminates annoying check engine lights associated with high flow downpipes. Installs in the ECU area and works with all piggybacks. Intended for offroad use only. Not yet tested with March 2008 and later v81 ECU.