OVERVIEW
The BMS Elite BOV kit replaces the S55's factory plastic cold-side J-pipe with a heavy-duty aluminum pipe that carries a Turbosmart Raceport blow-off valve. When you lift off the throttle, the valve vents trapped boost from the charge system, which helps cut down on compressor surge, supports turbo durability at elevated boost and adds an audible BOV note.
The valve is managed by an included electronic BOV controller and MAC solenoid, and the kit ships with the push-lock fittings and hard line needed to plumb it. The pipe itself has CNC-machined flanges with a locating lip, a gloss black powder coat and two 1/8" NPT bungs for a boost gauge or water/methanol nozzle. It works on cars running the stock tune, a JB4 or a flash tune and is made in the USA.
SPECS
- Pipe material: heavy-duty aluminum, made in the USA
- Flanges: CNC-machined with protruding lip for an OEM-style fit
- Finish: gloss black powder coat
- Bungs: (2) 1/8" NPT for boost gauge or WMI nozzle (plugs included)
- Blow-off valve: Turbosmart Raceport
- Control: electronic BOV controller with MAC solenoid
- Plumbing: 1/4" OD hard line with 1/8" NPT to 1/4" push-lock fittings
- Coupler: 3.25" heavy-duty silicone
- Tuning compatibility: factory tune, JB4 or flash tune
- Replaces factory cold-side J-pipe
PARTS INCLUDED
- (1) BMS Elite S55 aluminum J-pipe with BOV flange
- (1) Turbosmart Raceport blow-off valve
- (1) Electronic BOV controller
- (1) MAC solenoid
- (1) Charge pipe clip
- (1) Charge pipe O-ring
- (1) 3.25" silicone coupler
- (1) 4' length of 1/4" OD hard line
- (4) 1/8" NPT to 1/4" push-lock fittings
- (2) 1/8" NPT bung plugs with thread sealer
TECH RESOURCES
Additional Parts Required
- No additional parts required – the controller, solenoid, fittings and hard line are included.
- Compatible with the factory tune, JB4 or a flash tune; no tune is required.
Installation
VEHICLE APPLICATIONS
Fits S55-powered BMW M2 Competition, M3 and M4 only. Does not fit the N55-powered base M2.
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | M2 Competition | F87 | S55 3.0L Twin Turbo I6 | 2018–2021 |
| BMW | M3 | F80 | S55 3.0L Twin Turbo I6 | 2015–2020 |
| BMW | M3 Competition | F80 | S55 3.0L Twin Turbo I6 | 2015–2020 |
| BMW | M4 | F82 / F83 | S55 3.0L Twin Turbo I6 | 2015–2020 |
| BMW | M4 Competition | F82 / F83 | S55 3.0L Twin Turbo I6 | 2015–2020 |