Burger Motorsports B46/B48 Aluminum Charge Pipe – BMW 1, 2, 3, 4, 5, 6, 7 Series, X3–X6, Z4 & Toyota GR Supra 2.0 (F & G Chassis, B46/B48)

OVERVIEW

Burger Motorsports' B46/B48 charge pipe replaces the factory plastic charge air line (OEM BMW 13718601683) on longitudinally mounted four-cylinder BMWs and the 2.0L Toyota GR Supra. The aluminum two-piece design stands up to the added boost of a tune far better than the stock part, and its larger bore improves flow to the throttle body.

Both the throttle body and turbo flanges are CNC machined for a factory-style fit, and a reinforced silicone coupler and T-bolt clamps are supplied along with all other hardware. Two 1/8" NPT ports are built in for a boost gauge or methanol nozzles. Select the version that matches your engine generation at checkout.

SPECS

• Material: high-gauge aluminum
• Finish: black textured
• Construction: upper (throttle body side) and lower (turbo side) charge pipes
• Flanges: CNC-machined throttle body and turbo flanges
• Bungs: (2) 1/8" NPT for boost gauge or methanol/water injection
• Diameter: larger than OEM for increased flow
• Coupler: heavy-duty reinforced silicone (3R2.5)
• Replaces OEM BMW part: 13718601683
• Engine options: B48 Gen 1 & 2 or B48 Gen 3

PARTS INCLUDED

• (1) Aluminum upper charge pipe (throttle body side)
• (1) Aluminum lower charge pipe (turbo side)
• (1) 3R2.5 silicone coupler
• (1) 2.5" T-bolt clamp
• (1) 3" T-bolt clamp
• (2) 1/8" NPT plugs
• (1) M6x1x16mm bolt
• (3) M6x1x20mm bolts
• (1) Small O-ring
• (1) C-clip

TECH RESOURCES

Additional Parts Required

• No additional parts required; all installation hardware is included.
• Optional: boost gauge or methanol/water injection nozzles for the 1/8" NPT bungs (not included).

Installation

• B46/B48 Aluminum Charge Pipe Installation Guide (PDF)

VEHICLE APPLICATIONS

Fits longitudinally mounted B46/B48 engines that use OEM charge pipe 13718601683, including xDrive, Touring, Convertible, Gran Coupe and Gran Turismo body styles where offered. Does not fit transverse-mounted B46/B48 engines or TU2 B48P applications. 220i, 320i and 420i owners should contact us to confirm fitment before ordering.