do88 Charge Pipe – BMW 135i / 1M / 335i (E8x / E9x, N54)

OVERVIEW

The N54's plastic charge pipe is one of the first things to split on a tuned 135i, 1M or 335i. The do88 TR-270S replaces it with a 3" mandrel-bent seamless aluminum pipe with a CNC-machined sensor flange.

do88 measured 737 CFM against 542 CFM for the factory pipe at the same pressure drop — about 36 percent more. Two 1/8-27 NPT ports take methanol injection, and the silicone hose uses four layers of polyester/aramid reinforcement.

SPECS

• 3" mandrel-bent seamless aluminum pipe
• CNC-machined sensor flange
• Airflow at 0.1 bar (1.45 psi): 737 CFM vs 542 CFM OE — about 36 percent more (SuperFlow SF-1020)
• Two 1/8-27 NPT methanol injection ports with blanking plugs
• Silicone hose with 4 layers of polyester/aramid reinforcement
• Replaces OE 13717590306 and 11657556554

PARTS INCLUDED

• 1 × do88 aluminum charge pipe
• Silicone hose
• All installation hardware
• 2 × blanking plugs

TECH RESOURCES

• Required extras: none — all hardware included. A tune is needed to see a gain over OE.
• Installation instructions (do88): TR-270S N54 charge pipe installation instructions (PDF)
• Flow test (do88): TR-270S charge pipe flow test (PDF)
• Installation notes: remove the engine cover and OE charge pipe, transfer the sensor to the do88 flange, and fit the pipe and hose with the supplied hardware.
• Tuning: pairs with the MHD Super License – BMW N54 and the Burger Motorsports JB4 Tuner – BMW N54.
• 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-270S — do88 Pressure Pipe, BMW 135i / 335i N54

VEHICLE APPLICATIONS