Buy jb4 for n55 2014 F Series (electronic actuator) 135i 335i 435i 535i, 635i
Add up to 60hp to the wheels (80hp crank) on a completely stock car
Add up to 100hp to the wheels (120hp crank) on a fully modified car
The JB4 features a simple plug and play installation harness for easy installation and includes many features not found on any other tune. Including the ability to enable/disable the tuning from the drivers seat, gear dependent boost control to help with traction, ethanol and racing fuel support, built in diagnostic code reading/deleting, free firmware updates, and much more.
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.
The JB4 also does not require any user setup or customization but for more advanced enthusiasts the BMS DATA cable allows you to connect via a laptop for data logging and free software updates.
Note JB4_F30 shipments as of 11/15/2014 include the FlexFuel add on connector. This no longer needs to be purchased separately for these models. Also note the EWG add on connector remains optional and can be purchased separately for higher HP applications where direct EWG control is required. F Series N55 JB4 Applications: BMW 1 Series • 2013+ N55 BMW F20 1M LHD BMW 2 Series • 2014+ N55 BMW F22/F23 M235i BMW 3 Series • 2012+ N55 BMW F30 F31 335i/ix BMW 4 Series • 2014+ F32 F33 F36 435i / 435ix BMW 5 Series • 2011+ N55 BMW F10 F11 535i/ix • 2010+ N55 BMW F07 535i/ix GT BMW 6 Series • 2011+ N55 BMW F12 F13 640i/ix • 2011+ N55 BMW F06 640i/ix Gran Coupe
Add 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 turbos. 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:
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,
an rpm by rpm user adjustable map
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!
Here is a Collection of Videos that I Made to Teach You How to Repair Your BMW N54 TDO3L Turbochargers.
Here is the BMW N54 Wastegate Rattle Problem:
BMW 335i 535i 135i X6 N54 Wastegate Repair: Bushing Removal Using Slide Hammer
The JB4 Tune Will Never Fix the Pivot Problem Caused By The Wear in the Bushing Arm. This Problem Can Be Fix. Some Say that it Can Be Fixed Permanently, But Im not so sure. We Do Sell a Rebuild Kit for this Problem. The Rebuild kit is Made of 304 Stainless Steel Just like the Original Material. Keep in Mind this was never a materials Problem, it is a design Problem with the long Travel Distance. BMW Does have a Updated Tune to Help Prevent this Problem, but Im not sure if it Permanently Fixes the Issue. I am Just Happy to be able to save people Money from Having to buy New turbos for about 1600$. We have saved Our customers over $500,000, Instead of Having to Replace the Turbos from the Dealership.
Are BMW N54 535i, 335i, and 135i Turbos the Same? Here is the Difference In the BMW N54 135i, 335i, and 535i Turbos.
The Difference is that the Rear Turbo of the 535i has a Different Wastegate Actuator and Compressor Housing Which i was told is Designed to Clear the Firewall. The X6 Also Has a Difference, the Difference in the X6 N54 Turbos Is that the compressor housing and Wastegate is like the 535i, but the Compressor Housings have Plastic Inlets in Both Compressor Housings, Which Make it Difficult to Upgrade.