do88 Intake System – BMW 330i / 330e G20 / G21 (B46 / B48)

OVERVIEW

On the G20 330i the factory intake is a restrictive plastic airbox and pipe with a built-in silencer. The do88 LF-250 replaces it with a sealed airbox that draws only from the factory fresh-air inlet, a 105 mm cotton filter and a 102 mm aluminum intake pipe running to the turbo.

do88 rates it at up to 23 percent more airflow than stock. The sealed box keeps engine-bay heat away from the filter so intake temperatures stay down, and with the silencer gone you'll hear more of the turbo spooling. It fits the B48 330i and 330e G20/G21 — and the B46/B48 320i in markets that have it — using factory mounting points.

SPECS

• Sealed airbox drawing from the OE fresh-air inlet
• 102 mm (4") aluminum intake pipe
• 105 mm cotton-gauze filter, washable and reusable (ships dry)
• Airflow: up to 23 percent over stock (do88 testing)
• 7" airbox opening
• Removes the factory intake silencer
• Replaces OE 13718580424, 13718580428, 13718656981

PARTS INCLUDED

• do88 airbox and lid
• do88 aluminum intake pipe and silicone hoses
• do88 cotton air filter
• Sealing strips, hose clamps and mounting hardware

TECH RESOURCES

• Required extras: none. The filter ships dry — apply cotton filter oil if you drive in dusty conditions.
• Installation instructions (do88): LF-250 G20 330i intake installation instructions (PDF)
• Installation notes: remove the engine cover, OE airbox and intake pipe, transfer the air mass sensor connection, fit the do88 pipe and airbox, then the filter and lid.
• Torque: hose clamps 5 Nm.
• Filter care: clean about every 10,000 km (6,000 miles) with a cotton-gauze filter cleaner; oil evenly and sparingly.
• 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

• LF-250 — do88 Intake System, BMW 330i G20

VEHICLE APPLICATIONS