do88 Turbo Inlet Pipes – BMW M3 / M4 / M2 Competition (F8x, S55)

OVERVIEW

Between the airboxes and the turbos, the S55 uses narrow 55 mm inlet pipes. The do88 kit opens both up to 63 mm, a 33 percent larger flow area, for less restriction ahead of the compressors.

The rear inlet is a custom aluminum pipe with a welded, CNC-machined turbo flange; the front is a 3D freeform steel-wire-reinforced silicone hose with a CNC-machined adapter. do88 measured 778 CFM against 690 CFM stock at the same pressure drop. Choose the version for the factory turbos (41 mm inlet) or for hybrid turbos with a 54 mm inlet.

SPECS

• Front and rear turbo inlets, 63 mm vs 55 mm OE — about 33 percent more flow area
• Airflow at 75 mbar (1.09 psi) pressure drop: 778 CFM vs 690 CFM OE — about 13 percent more
• Rear: aluminum pipe with welded CNC-machined turbo flange
• Front: steel-wire-reinforced silicone hose with CNC-machined radius adapter
• Matte black hose clamps
• Two versions: OEM turbo (41 mm) or hybrid turbo (54 mm)
• Replaces OE 13717846272 and 13717846271

PARTS INCLUDED

• 1 × front turbo inlet (silicone hose with CNC adapter)
• 1 × rear turbo inlet (aluminum pipe)
• Matte black hose clamps

TECH RESOURCES

• Required extras: some screws, nuts and gaskets may need replacing and are not included — see page 1 of the do88 instructions for the list.
• Installation instructions (do88): S55 turbo inlet pipes installation instructions (PDF)
• Installation notes: order the version matching your turbo inlet — 41 mm for factory turbos, 54 mm for hybrid turbos. Remove the airboxes and OE inlet pipes and fit the do88 inlets with the supplied clamps.
• Pairs well with: the do88 LF-150-SS S55 intake system.
• Tuning: pairs with the Bootmod3 S55 Tune – BMW M3 / M4 / M2 Competition (F8x) and the Burger Motorsports JB4 Tuner – BMW M3 / M4 / M2C (S55, F8x).
• 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

• do88-kit205-S-OEM — do88 Turbo Inlet Pipes, OEM turbo (41 mm)
• do88-kit205-S-ID54 — do88 Turbo Inlet Pipes, hybrid turbo (54 mm)

VEHICLE APPLICATIONS