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Jb4 BMW BMW 335 Performance Jb4 135 335 intakes
BMW 135i increase boost 0-60 times JB4
bmw 335i performance
N54 JB4 Upgrades

N54 G5 Board Hard Flash

Mail in your existing JB4 G5 board to be hard flashed with the latest N54 firmware. After placing your order mail in a copy of the order receipt with the board to the address on the contact us page. Turnaround is 1-2 days.

JB4 BMW performance tuner

$30.00   
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N54 JB4 G5 Upgrade Kit

Upgrades your JB3 or JB4 G4 control box to the latest JB4 G5 ISO processor. New with the G5 board we've added an isolated boost control system, optional flat foot / no lift shifting for manual transmission cars, optional 2STEP rev limiter, optional speed limit defeat, and extra expansion input/output.
Click here for JB4 upgrade directions and the latest firmware/software.
JB4 BMW performance tunerJB4 BMW 335i Performance

$175.00   
Not available in California. Worldwide Shipping Available.
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JB3->JB4 power wire

This power wire is required if updating from a JB3 harness.
JB4 power wire

$10.00  
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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 DATA cable.
$10.00
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G5 2STEP Relay for manual transmissions

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


$35.00
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JB4 3.5bar and 4bar plug and play TMAP adapters

Use these plug and play adapters to quickly adapt a 3.5bar or 4bar
TMAP sensor to your N54, raising the boost maximum boost range from
20psi factory up to 36psi for the 3.5bar and 43psi for the 4bar. For
most applications the 3.5bar adapter is suggested which requires OEM
BMW sensor part number: 13627843531. For very high boost applications
the 4bar adapter can be used which requires Bosch 4bar sensor part
281002576.

TMAP Adapter JB4

$32.50
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JB4 Single Turbo Boost Solenoid

Low frequency MAC solenoid with plug and play connector for use with JB4 MAC solenoid single turbo firmware.
TMAP Adapter JB4
$49.00
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JB4 Anti-Lag Kit

Includes 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 boost has built up release the volume button to instantly take off under full boost. Absolute must have for rolling races of any transmission type and works well for automatics off the line too. Requires a BMS back end flash map and ethanol fuel is strongly suggested. Installation directions and additional details are posted here.
$35.00
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Replacement N54 JB4 PNP Harness

Upgrade your old JB wiring harness to the latest JB4 G5 ready plug and play harness. Includes a completely new harness prewired for the lastest G5 ISO board.
Juice Boc JB3 Plug & Play Harness

$304.00
Not available in California. Worldwide Shipping Available.
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High Temp JB4 Enclosure

This new enclosure is made from a temperature resistant resin and is a direct replacement for all existing JB4 enclosures. Other than being able to withstand higher temperatures before deforming there is no functional difference between this and the previous enclosure.
$10.00
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By purchasing this item you agree to the Terms and Conditions.

 
 
BMW LED angel eyes
BMW N55 135i 335i Performance Intake
N54 JB4 Tuner JB+ Plug & Play BMS Cowl Filters BMW Wheel Spacers N54 Fuel Rail N54 Chargepipe
JB4 BMW Performance Tuners JB+ BMW Performance Tuners BMW Wheel Spacers bmw methanol water injection BMW Performance Intercooler
N54 Spark Plug Tool BMW Floor Jack Pad Best N54 Oil Catch Can N54 Fuel Pump Methanol Injection BMW LED Angel Eyes
BMW Jack Pad Adapter BMW Jack Pad Adapter BMW Oil Catch Can BMW Fuel Pump upgrade walbro bmw methanol water injection
BMW Performance Tunes:
N54 JB4
N54 JB+ Quick Install
N20 N55 S55 Stage 1 Tuner
E Series N55 JB4
F Series JB+ Tuner
F Series N55 JB4
B48/B58 JB+ BETA
B46/B48/B58 JB4
N20 / N26 JB4
N63/N63tu Stage 1
M5/M6 S63tu Stage 1
s63tu M5/M6 JB4 BETA w/ BCM & OBDII
2015+ M3/M4 S55 JB4
2016+ M2 JB4
BMS Power Box (PBX)
JB Diesel (JBD)
 
BMW Performance Intakes:
BMS N54 Dual Cone Intake
BMS N55 BMW Performance Intake
F30 F32 N55 Performance Intake
BMS M3/M4 S55 Performance Intake
BMS M5/M6 s63tu Performance Intake
BMS B58 340 Performance Intake
BMS Silicon Single Turbo Filter
BMW Drop-In Air Filter Replacements
Filter Cleaning & Oil Kit
BMW Oil Catch Can
N54/N55 BMW 135i / 335i Intercooler
cp-e™ BMW 135i / 335i Intercooler
F Chassis BMW Intercooler
cp-e BMW 135i 335i Blow Off Valve Kit
BMS N54 N55 Chargepipe
Phoenix Racing N54 / N55 Chargepipe
F Chassis N55 Chargepipe
N20 N26 Chargepipe
M3/M4 S55 Chargepipes
 
BMW Interior:
Add OEM BMW Paddle Shifters
Short Shift Kit for BMW
Billet Shift Rod
F30 F31 F32 LED Glove Box Light
LED Courtesy / Footwell Lights
LED BMW Trunk Light Upgrade
Downshift Blocker
Short Throw Clutch Stop
GoPro Hero 3 and 4 12V Power Cord
LED 12v Flashlight
JB4 Logo Keychain
BMW Exterior:
AC Fabrication Aluminum Catback
3.5" N55 & B58 F Chassis Exhaust Tips
E Chassis 335 4" Slip-On N55/N54 Exhaust Tips
S55 M3 M4 F Chassis 3.75" Exhaust Tips
M3 M4 M5 M6 F Chassis Billet 3.75" Exhaust Tips
328 N51 N52 E Chassis Exhaust Tips
BMW Wheel Spacers and Spacer Bolts
Wheel locks for Spacers
Wheel Locks for BMW
Titanium BMW Lug Bolts
H8 LED Angel Eyes
White Halogen H8 Angel Eyes Upgrade
BMW Wheel Pin Tool
LED License Plate Lights
LED Courtesy Lights
BMW Tow Hook GoPro Camera Mount
BMW Tow Plate License Plate Mount
BMW Metal Jack Pad Adapter
Protective Wheel Saver Socket
Magnetic Spark Plug Socket
BMS Stickers
 
BMW Upgrades:
N54 JB4 Upgrades
N55 JB4 Upgrades
N20/N26 JB4 Upgrades
N63 JB4 Upgrades
JB4 Billet Aluminum Enclosure
JB4 Smart Phone Wireless Connect Kit (Rev. 3)
BMS DATA Cable & 3' Extension Cable
Bavarian Technic BMW Scanner
OBDII CAN Module for F Series
N54 N55 Spark Plugs
BMW Methanol Injection and Accessories
B58 340 Billet Methanol Spacer
Magnetic Spark Plug Socket
Stainless Steel Brake Line Upgrade
Sport Oil Cooler Valve
Rob Beck Replacement PCV Valve
BMS Short Throw Shifter
Billet Shift Rod
Replacement Downpipe Gaskets/Hardware
Fuel-IT N54 Secondary Fuel Line Adapter
E Series Low Fuel Pressure Upgrade Kits
Ethanol Content Tester Kit
N54 N55 S55 Oil Thermostat Lid
Short Throw Clutch Stop
Modified BMW Clutch Valve
BMW Oil Catch Can
Mini Cooper:
JB+ Mini Cooper Tune
MINI B38 / B46 / B48 JB4 BETA
Bavarian Technic BMW Scanner
R55 R56 R57 R58 R59 Wheel Spacers
Mini Cooper Wheel Spacers
Mini Cooper Floor Jack Pad
Countryman Paceman Floor Jack Pad
Mini Cooper Wheel Locks & Keys
Mini Cooper Wheel Spacer Locks
Mini Tow Hook GoPro Camera Mount
GoPro Hero 3 and 4 12V Power Cord
BMS Wheel Pin Tool
Magnetic Spark Plug Socket
Clutch Stop
Protective Wheel Socket
Rechargeable LED Flashlight
 
Mercedes Benz:
2015 W205 C200 C250 C300 Stage1
2015 W205 C400 Stage1
C250 JB+ Tuner
C250 Intake
2015+ C200 C300 Intake
Mercedes Floor Jack Pad
Mercedes Wheel Spacers
17mm Protective Wheel Socket
Air Filter Cleaning Kit
Rechargeable LED Flashlight
12V Power Cable for GoPro Hero 3 and 4
 
Parts for VW:
JB1 and JB4 Tuners for VW
JB1 Billet Aluminum Enclosure
JB1 Plastic All Weather Enclosure
Gen 3 Turbo Muffler Delete for VW & Audi
EA888 JB4 BETA Upgrade Kit
BMS EA888 Intake and Turbo Inlet
Wheel Spacers for VW Mk7
Billet Windshield Reservoir Washer Cap for VW
Tow Hook Camera Mount for GoPro
Clutch Stop for VW
VW Rechargable LED Flashlight
GoPro Hero 3 and 4 12V Power Cord
17mm Protective Wheel Socket
Lexus:
Lexus RC200t and IS200t Intake
Lexus Wheel Spacers by BMS
21mm Protective Wheel Socket
Rechargable LED Flashlight
GoPro Hero 3 and 4 12V Power Cord
 
Other:
Installation Guides
Burger Motorsports Logos
Terms & Conditions
BMW Chassis Codes
Mini Cooper Chassis Codes
California Emissions Info
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