do88 Charge Pipe – BMW F-Series B58 Gen 1 (M240i / 340i / 440i & More)

OVERVIEW

The plastic charge pipe on the B58 Gen 1 ages and cracks, and a failed pipe can put the car into limp mode or stop it starting altogether — something most tuned M240i, 340i and 440i owners meet sooner or later. The do88 TR-410 replaces it with a two-piece aluminum pipe: a 60 mm (2⅜") lower section and a 76 mm (3") upper section, mandrel-bent and joined by an aramid-reinforced three-hump silicone hose that absorbs thermal movement.

The throttle body flange, turbo connection and MAP sensor mount are CNC-machined, and the hose ends are 6063 aluminum with a 3 mm wall so they keep their shape under tight clamps. do88 rates it at about 23 percent more flow than OEM — 649 CFM against 528 CFM at 150 mbar. Two 1/8" NPT ports take methanol injection or a boost sensor, plugs included. Black powder coat, and it clears the engine cover.

SPECS

• 60 mm lower and 76 mm upper pipes, mandrel-bent aluminum, black powder coat
• CNC-machined throttle body flange, turbo and MAP sensor connections
• CNC-machined 6063 aluminum hose ends with 3 mm wall
• Aramid-reinforced three-hump silicone joining hose
• Flow: 649 CFM vs 528 CFM OEM at 150 mbar — about 23 percent more (do88 testing)
• Two 1/8" NPT ports for methanol injection or boost sensor, plugs included
• Mikalor hose clamps with inner rings
• Replaces OE 13718601684

PARTS INCLUDED

• 2 × do88 charge pipes (upper and lower)
• 1 × do88 silicone joining hose
• 2 × hose clamps with inner ring
• 1 × M6 screw
• 2 × 1/8" NPT plugs

TECH RESOURCES

• Required extras: none — the OE sealing ring, C-clip and sensors transfer to the do88 pipe.
• Installation instructions (do88): TR-410 B58 Gen 1 charge pipe installation instructions (PDF)
• Installation notes: disconnect the air mass meter, remove the airbox, engine cover, turbo inlet pipe and OE charge pipe. Fit the lower pipe to the turbo outlet with the OE sealing ring (lip pointing into the pipe) and C-clip, add the silicone hose and throttle-body pipe, transfer the sensors and secure with the OE T30 screws and supplied M6 screw.
• Torque: hose clamps 5 Nm once the hose is seated at both ends.
• Tuning: pairs with the Bootmod3 B58 Tune – BMW and MHD Super License – BMW B58.
• No CARB EO is published for this part — off-road / competition use only in California.
• Price is for the item only; labor is not included.

PART NUMBER

• TR-410 — do88 Charge Pipe, BMW F-Series B58

VEHICLE APPLICATIONS