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BMS N54 JB4 (G5), 2007-2010 BMW 135i / 335i / 535i (N54) *Free Shipping*



BMS N54 JB4 (G5), 2007-2010 BMW 135i / 335i / 535i (N54) *Free Shipping*
Item # : BMS-Jb4-Tune
Regular price:$529.00
Sale price:$479.00
Location: 
Options: 
Upgrades Option 1: 
Upgrades Option 2: 
Condition : New
Quantity :


Product Description
Looking for the best price on the JB4? We have the BMS JB4 for N54 135i and 335i on sale!

Performance products are intended for use with closed course competition vehicles only. California customers please click here for Emissions Guidelines.

Ready to take your BMW twin turbo to the next level? How about up to 80hp to the wheels (100hp crank) on a completely stock car, up to 160hp to the wheels on factory turbos, or up to 350hp to the wheels on a fully modified car with larger turbo(s)? The JB4 includes a simple plug and play installation harness and is compatible with all ECU versions and transmission types. It's everything you need to take your N54 powered vehicle from mild to wild!

In addition to several performance maps which can be selected "on the fly" right from the drivers seat the JB4 includes a 100% stock bypass map, a valet mode, ethanol fuel (E85) support, progressive water/methanol injection support, racing fuel map, an auto tuning map that adjusts the JB4 mapping to your current climate, octane, vehicle condition, and modifications continuously, and for those interested an rpm by rpm user adjustable map. Other features include optional in dash gauges for boost and other engine parameters, a programmable shift light, on the fly adjustable torque limiting to aid with launches at the track, an optional 2STEP rev limiter & no lift shifting for manual transmission cars, an optional speed delimiter, and much more.

Remember the JB4 does not require any additional modifications or previous stages. Simply install the JB4 as your first and only modification and enjoy an entirely new fast and smooth racing experience. As you decide to modify your car further the JB4 is setup to grow with your vehicle. Whether you're racing a 100% OEM car on pump gas or a 700whp single turbo drag queen, the JB4 has the perfect mix of performance, features, flexibility, and support to ensure your car performs to the best of its potential!

Applications: 2006-2010 E90 Sedan 335i / 335xi 2006-2010 E91 Touring 335i / 335xi 2006-2010 E92 Coupe 335i / 335xi 2007-2010 E93 Convertible 335i / 335xi 2008-2010 E60 Sedan 535i / 535 xi 2008-2010 E61 Touring 535i / 535 xi 2008-2010 E82 Coupe 135i 2011+ 335is 2008-2010 E88 Convertible 135i 2008-2010 BMW X6 xDrive35i 2009+ BMW Z4 sDrive35i 2011+ 1M Fully compatible with DCT transmissions!

JB4 Upgrades:

G5 2 STEP relay for manual transmissions

Enables G5 2STEP rev limiter for more consistent manual transmission launches and no-lift / flat foot shifting. Requires BMS USB Cable.

G5 Speed Limit Defeat Wires

Allows G5 board to remove your speed limiter. Not required if also equipped with BMS flash. Operating a vehicle at high speed involves extreme risk including the risk of serious injury or death and should only be attempted by professional drivers in a closed environment. Use subject to terms and conditions posted. Requires BMS USB Cable.

BMS JB4 N54

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We specialize in Aftermarket Performance Part Upgrades for BMW 135i, 335i, Subaru BRZ, Subaru WRX / STI, Mitsubishi Evo and more! We have the largest selection of BMW 335i Performance Parts for the BMW E90 / E92 Chassis. If you are looking for Performance Parts for the BMW 335i, 135i, N54 or N55 E90, E92 or E82, we have them! We also have the best prices for BMW 135i / 335i Parts!