BMS Burger Motorsports JB4 Billet Aluminium Enclosure Case - CNC Machined, Weather-Resistant Housing for BMW F-Series/F-Chassis | Fits All JB4 & Stage 1 Tuners | Made in USA | Part JB4-AE

JB4-AE Machined Alloy Enclosure for JB4 and Stage 1 Modules

Give your tuning module the protection it deserves. This precision machined aluminium enclosure from Burger Motorsports wraps your JB4 or Stage 1 unit in a tough, compact shell with a rubber sealing ring that helps resist water and grime. Built to handle daily use, spirited weekend drives and track sessions, it keeps your electronics safer from knocks and vibration in the BMW F-series engine bay.

Why enthusiasts choose this enclosure

• Serious protection for your tuning box in all seasons and driving conditions
• Billet aluminium body for strength, stability and a premium look
• Rubber gasket helps reduce dirt and moisture ingress for extra peace of mind
• Designed around the F-chassis environment for a clean, secure fit
• Made in the USA with genuine Burger Motorsports quality
• Works with all JB4 controllers and BMS Stage 1 piggyback units

Details and specifications

• Construction: CNC machined billet aluminium housing
• Sealing: Rubber sealing ring to help resist the elements
• Fasteners: 6-32 x 5/8 in case bolts, 7/64 in Allen key
• Compatibility: All BMS JB4 and Stage 1 tuners
• Origin: Made in the USA
• Part number: JB4-AE

Fitment and compatibility

Suitable for BMW F-series applications using JB4 or Stage 1 piggyback systems. Ideal for drivers who want a durable, splash-resistant, impact-ready cover for their tuning electronics.

Compatibility check

We verify fitment before dispatch. Add your UK registration or the last 7 of your VIN at checkout and we will confirm compatibility for your vehicle.

Installation and fitting

DIY-friendly for most enthusiasts with basic tools. Prefer professional fitting? Book with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Manufacturer and warranty

Manufacturer: Burger Motorsports

Warranty: BMS do not offer warranty on this item.

Proven by enthusiasts

We have run this alloy case on our own cars and customer builds with excellent results. Owners praise the sturdy construction, tidy install and confidence it brings for year-round use.

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