do88 Carbon Intake System – BMW M2 / M3 / M4 (G87 / G80 / G82, S58)

OVERVIEW

The S58 breathes through two plastic airboxes and a pair of plastic turbo inlets, and on a tuned or hybrid-turbo car that path becomes a restriction. The do88 LF-270 replaces the whole intake side with full carbon fiber: sealed airboxes with an added fresh-air feed behind each headlight, smooth carbon intake tubes, and CNC-machined aluminum turbo inlets that open the connections well past the factory sizes.

do88 developed it alongside their S58 charge pipe and cooling parts, with three goals: cleaner filtration, a straighter airflow path and lower inlet temperatures. They rate it at up to 24 percent more airflow with a lower pressure drop than stock. Sleeve inserts let the same inlets work with the factory turbos or with hybrid turbos such as the Pure S58 Stage 2+, and the airboxes clear the CSL strut brace. Expect noticeably more turbo and diverter-valve sound.

SPECS

• Full carbon fiber airboxes and intake tubes with UV- and heat-resistant high-gloss clearcoat
• Sealed airbox design with an added fresh-air feed behind each headlight
• Intake tubes start at 105 mm at the filter and taper to 3.25" at the turbo inlets
• Aluminum turbo inlets with 83 mm hose connections (OE: 61 mm and 72 mm); 53.6 mm opening at the compressor
• Included sleeve inserts for OE turbos; compatible with hybrid turbos such as Pure S58 Stage 2+
• Two do88 105 mm cotton-gauze filters, pre-oiled, washable and reusable
• Airflow: up to 24 percent over stock (do88 testing)
• Clears the CSL strut brace
• Replaces OE 13718095804, 13718097028, 13718095806, 13718097045, 13718095805, 13718095807, 13718095810, 13718095812, 11658090919, 11658091579

PARTS INCLUDED

• Right and left carbon fiber air filter housings
• Right and left carbon fiber intake pipes
• Front and rear cast aluminum turbo inlets
• 2 × hump silicone hoses and 1 × breather silicone hose
• Brackets: 2 × left intake pipe, 1 × right filter housing, 1 × left filter housing, 1 × CNC lower right housing bracket
• CNC breather hose joiner
• 2 × CNC sleeve inserts for OE turbos (45.6 mm ID)
• 2 × do88 performance air filters
• 2 × rubber grommets; O-rings: 2 × 57 mm, 2 × 52 mm
• Stainless hardware: 1 × M6×20 socket head, 3 × M6×20 countersunk, 7 × M6×12 button flange, 3 × M5×12 button flange, 2 × plastic washers
• Hose clamps: 2 × 16–27 mm, 4 × 70–90 mm, 2 × 90–110 mm

TECH RESOURCES

• Required extras: none. Shop supplies: blue thread locker for the turbo inlet screws and a little grease for the O-rings.
• Installation instructions (do88): LF-270 S58 intake installation instructions (PDF)
• do88 video (S58 parts overview): do88 BMW G8X S58 upgrades – intake section (YouTube)
• Installation notes: remove the strut tower brace, airboxes, engine cover section and both turbo inlets. Transfer the OE heater element and its O-rings to the do88 front inlet (warm the plastic line to release it), fit the O-rings and sleeve inserts, then install both inlets before assembling the carbon pipes, housings, grommets and silicone hoses onto the factory mounts.
• Torque: turbo inlet M6 screws 8 Nm with blue thread locker; hose clamps 5 Nm. Do not overtighten clamps on the carbon pipes.
• Upgraded turbos: skip the OE sleeve inserts when running Pure Turbos; the inlets are designed to suit hybrid compressor housings.
• Tuning: no tune is required. It suits tuned cars best — pairs with the Bootmod3 S58 Tune, MHD Super License – S58 and Pure Turbos Stage 2+ – S58.
• Filter care: clean and re-oil the filters about every 20,000 km (12,000 miles) with a cotton-gauze filter cleaning kit.
• Instructions are shot on an M2; panel removal differs slightly on the M3 and M4.
• 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-270 — do88 Intake System, BMW M2 / M3 / M4 G80 G82 G87 (S58)

VEHICLE APPLICATIONS