F Chassis 328/428 Tune + Exhaust Combo Deal

Instant power with easy plug & play installation
Ready 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 drivers seat, gear dependent boost control to help with traction, E85 compatibility, built in diagnostic code reading/deleting, expanded engine safety systems, free firmware updates, in dash boost gauge, the ability to control the exhaust flapper using your BC button, and much more.

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. For more advanced enthusiasts the BMS DATA or JB4 Mobile cable allows you to connect a laptop or smartphone for additional gauges, data logging, and free firmware updates as we add new features and maps. Also note some F10 and X chassis models require a JB4 mobile adapter or BMS data cable to select options bit#1 to enable the in-dash controls for those models.

The JB4 is a full plug and play device that installs and removes in minutes at home without special tools and unlike flash maps that permanently write over your DME with the JB4 your DME is never aware it's running more than the factory power levels. And when you're ready to change things up the JB4 is not VIN locked and can be moved to your next vehicle or resold.

Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit, or to your Windows laptop with the BMS data cable. Both options allow you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development. Separate JB4 Mobile app purchase also required.

ACTIVE AUTOWERKE BMW F22/F30 228I/328I SIGNATURE EXHAUST BENEFITS
This BMW F22/F30 exhaust delivers everything we know you would want in a performance exhaust: eye-catching style, a sophisticated yet aggressive tone, weight savings, and most importantly measurable horsepower performance gains!

For the sound, check out the video at the bottom of the page to hear the aggressive new pitch the product produces for yourself! This muffler turns your 328I exhaust tone into a sporty but mellow tone that is not only exhilarating but non obtrusive on your ears.

The factory counterpart weighs 29 lbs. while the Active Autowerke Signature exhaust weighs only a mere 19 lbs. Weight savings are not the only attributes, this 328I performance exhaust has a modular design with its v-band clamps that makes fitment a snap. A revelation in BMW tuning.

Finally, the real meat and potatoes will always be the horsepower numbers. On the in-house Active Autowerke Mustang dyno, our otherwise 100% stock 2013 328I test mule spun the rollers to the tune of an extra 9 RWHP, and 13 LB-FT of torque from just a quality muffler upgrade.

Turbos love to exhale, and we are very anxious to continue to unearth just how much extra power is hiding in the stock exhaust system.

Remus, the world market leader in sport exhaust systems presents a brand new, unique exhaust option for the F30/F31 3-Series. Remus engineers tune every single exhaust model individually to the respective vehicle. From development to series production, at Remus, quality is always a top priority.

This is a Catback Sport Exhaust with dual tail pipes, developed for the BMW F30/F31 328i (Does not fit the xDrive models).

The catback setup consists of a rear muffler with left (2 76mm) tips, stainless steel catback section.