SKU: 91650910572

E Chassis N55 BMW JB4 Tuner

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Description

E Chassis N55 BMW JB4 TunerJB4 Tuner for N55 E Chassis BMW How about up to 60hp to the wheels (80hp 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 & play installation harness for easy installation and includes many features not found on any other tune. Including on the fly in dash map switching between factory and various performance maps, optional in dash gauge displays for boost and other

JB4 Tuner for N55 E Chassis BMW 

How about up to 60hp to the wheels (80hp 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 & play installation harness for easy installation and includes many features not found on any other tune. Including on the fly in dash map switching between factory and various performance maps, optional in-dash gauge displays for boost and other critical engine parameters, progressive water/methanol support, ethanol fuels support, built-in code reading, 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. 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.

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.

Click here for the latest JB4 firmware, map guide, and details. 

How to tell if you need harness A or B


N55 JB4 Features & Benefits

• N55 Power gains of up to 60hp and 60tq to the wheels on a stock vehicle
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom JB4 BMW tuning software and up to 8 maps for various fuel and modification levels
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• View and record up to 40 different gauges/engine parameters in real-time with the JB4 app.
• Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4 app for a perfect launch
• Exhaust flap operation can be controlled in most JB4 applications
• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
• The JB4 offers a lot more performance, functionality, and safety than your average performance chip
• Quick Plug & Play Installation
• CANbus OBDII integration offering unrivaled tuning features and performance
• Improved performance over non-integrated chip tunes
• Runs as smoothly as stock, this is how your vehicle should have come from the factory
• Compatible with all driving modes
• Fuel economy unchanged during normal driving
• 91 octane fuel or better required for performance gains
• Not VIN locked and can be removed without a trace and resold down the road
• Includes the rugged JB4 billet aluminum enclosure for protection
• Made in the USA
• Free USA Shipping
• 5 year warranty
 

N55 JB4 APPLICATIONS

BMW 1 Series
• 2011-2013 N55 BMW E82 E88 135i LHD

BMW 3 Series
• 2011 N55 BMW E90 E91 335i/iX
• 2011-2013 N55 BMW E92 E93 335i/iX

BMW X Series
• 2011-2016 N55 BMW X1
• 2011-2013 N55 BMW E70 X5 35i/iX
• 2011-2013 N55 BMW E71 X6 35i/iX  


Click here for the latest JB4 firmware, map guide, and details

How to tell if you need harness A or B

 

What is a JB4?

The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and the DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster. While it's not the only tuning system that operates this way the JB4 separates itself from the competition with much more advanced connection points and processing including CANbus, fuel & spark control, Bluetooth to your smartphone, and a variety of innovative and advanced features not possible with any other system. BMS regularly publishes free mapping and firmware updates adding performance and features as ongoing development allows. In addition, the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time. Often imitated but never duplicated the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade.

E70 X5 E71 X6 N55 JB4 Install

All others click below:

JB4 Tuner Install Video for E Chassis N55 BMW

DYNO RESULTS

JB4 Only

 

 

JB4, Exhaust, E85 Fuel

 

JB4, Exhaust, Hybrid Turbo, E85 Fuel

 

Optional JB4 Phone Software

 

JB4 Optional Startup Gauge Sweep

 

JB4 Optional In Dash Boost Gauge / Shift Light Demo

 

JB4 135i 335i Steering Wheel Controls Demo Video

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91650910572

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4.6 ★★★★★
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S
Verified Purchase
Steve
Phoenix, US
★★★★★ 5
Good little oven
Color: Stainless Steel
Delivery was prompt. Wasn’t sure what to expect on the oven but the controls were fairly intuitive and have used several of the settings. Performs well on everything that we’ve used it for. The instructions are basic but adequate to get you cooking. The size was a little larger than anticipated, it is deeper and takes up more counterspace but you can cook a chicken in it! Looks great sitting on the counter. Not too industrial and the buttons and knobs make changing settings easy.
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Reviewed in the United States on January 19, 2026
R
Verified Purchase
Ray
Birmingham, US
★★★★★ 5
We love it!
Color: Stainless Steel, Color: Stainless Steel
Simply said, it’s great! My wife absolutely loves this little oven. It has a bunch of options to choose from for cooking. You can use it as an air fryer, oven, you can cook perfect crispy wings, as well as a nice piece of steak with the included thermometer. Since it’s very little compared to the regular house stove, its much easier and quicker to clean it. It’s a must have for any home!
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Reviewed in the United States on February 15, 2026
S
Verified Purchase
Sherry
Belleville, US
★★★★★ 4
Best Toaster Oven Ever!
Color: Stainless Steel
I've had the oven about a week now and have used it numerous times. The air fried wings came out perfect. The oven baked chicken was perfectly cooked thanks to the probe and crisped up nicely. Toast is fast and just the right color each time. I give the oven high marks for the value and features. The oven's performance exceeds my expectations. The only reason I did not give this gem 5 stars is due to the oven door handle. When open, the door handle hits the counter top preventing it from opening fully. When the oven is hot, pulling something out is an issue due to the door not opening fully. Otherwise, I highly recommend this oven.
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Reviewed in the United States on December 26, 2025
J
Verified Purchase
Joseph B.
Natrona Heights, US
★★★★★ 5
Great Product and Great Customer Service
Color: Stainless Steel
This little countertop oven checks all of the boxes for me. First, even at its highest tempeture for baking bread at 450 the outside of the unit is warm to the touch but will not burn your hand. It has all of the settings one would want for an oven to do icluding, reheat, PROOF (for bread) broil, stay warm etc. I love it and the best of all of this was my experience with their customer service. I started having an electrical glich with the unit soon after I bought it and reported the problem to the company. Well, then it stopped having that problem but intermittently did. The light would come on by itself and sometimes I could not get the oven to turn on. So, this ensued off and on for several months until I decided to once again contact customer service to report my problem. They took my information and then informed me that they would be happy to replace the unit. All I needed to do was send my unit back after receiving the replacement. Which they did and I did and VOILA, problem solved just like that. No rigamarole, no hassle just excellent customer service.
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Reviewed in the United States on May 1, 2026
J
Verified Purchase
J
Boise, US
★★★★★ 5
Fantasticallly engineered oven, cooks quickly and evenly, may need to adjust recipes
Color: Stainless Steel
4.5/5 This Typhur Sync Oven is a thoughtfully engineered toaster oven air fryer that has some of the best air fryer capabilities you can get out of a toaster oven air fryer, on par with and potentially more even cooking than the often superior basket air fryers. This is largely thanks to its fan placement and size, which is very similar to basket air fryers: large (roughly 6-7") and positioned over the top. This large fan moves a lot of heat quickly and evenly, leading to really even cooking and much shorter bake time. This oven looks and feels well built, with the walls being relatively well insulated stainless steel sheets (not a ton of heat emitted from it), heavy duty hinges, and primarily stainless steel accessories (and an enamel coated roasting rack). There are multiple fan settings depending on the preset chosen, though the fan unfortunately can not turn off except for the proofing feature which has a low max temperature. The temperature probe that comes with it is really easy to use and store. Racks can still be stored on top of the toaster oven without much issue even though the probe is also stored on top. If you're not careful you might tap the probe or knock it off, but unlikely. Cooking is very even and quick. The Typhur cooks quicker than my previous toaster oven, and much more evenly. You may not need to move food around when air frying it, which is really impressive. Cooking is so quick that things may burn if you cook them at normal times. You may need to reduce cooking time by more than 25-30%, or lower temperature so things can cook more evenly inside and out, given fast convection cooking more noticeably cooks the outside more than the inside. Couple cons: - The only real issue I've noticed is rarely when heating up something in the top of the fan will vibrate slightly, which is mildly annoying and can shake the pans on top of it. Tapping the top of the oven will usually stop the vibration, which makes me think there may be a bit of play near the fan/heater. This issue rarely occurs. - The cookies setting runs the fan on low speed, but it's still moving enough air to keep heating even. The problem is that because the oven is so much faster at cooking - even true on the low fan speed cookies preset - that larger cookies may be undercooked on the inside and/or darker brown than preferable on the outside. If I want my batch of large cookies to be cooked perfectly, I still use the conventional oven. This convection oven works quite well for smaller cookies though, and well enough for larger cookies if you figure out the right temp. The toaster oven recommends 330F for cookies, often 325F is recommended (25F lower than normal 350F), but I've found that even 320F is too high of a cooking temp for larger cookies, as they can be fully cooked on the outside but raw on the inside, like was the case with my 100gram (~1/3rd cup) chocolate chip cookies cooked at 320F. My 80g sugar cookies cooked at 300F seemed more similar to conventional, but were still more browned on the exterior than desirable.
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Reviewed in the United States on January 4, 2026

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