BMW N20 & N26 JB4 Performance Tuner - 220i, 228i, 320i, 328i, 420i, 428i, 528i

BMW N20 & N26 JB4 Performance Tuner - 220i, 228i, 320i, 328i, 420i, 428i, 528iReady to take your BMW N20 turbo to the next level? How about up to 50hp to the wheels (65hp crank) on a completely stock car or 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 driver's seat, gear dependent boost control to help with

Fuel economy is unchanged during normal driving

• 2011–2018 N55 F13 640i Coupe

using AN block off caps as applicable

BMW 335xi (2007 to 2010)

The JB4 is the only tuning system that includes CANbus and optional BCM connections providing dramatically improved performance and smoothness over other 2-channel tuning systems

proper sealing

the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade

E85 certified solution designed for optimal fuel delivery and increased horsepower

we have heard it all from all types of customers with a variety of mileage and turbo combinations

the high-pressure pump is not able to keep up with demand resulting in fuel pressure drops that trigger engine misfires

Most 2020-2026 Toyota Supra vehicles with factory wheels and tire sizes take 10mm to 13mm in the front and 13mm or 15mm spacers in the rear

MK3 TT (2014+) Quattro – 2