B58 Stage 2 Bundle

The B58 bolt-on foundation in one order: our catless downpipe, the matching cold air intake and the bootmod3 Ultimate tuning licence — the three things a B58 needs before it makes real power. Pick Gen 1 for F chassis or Gen 2 for G chassis.

Why it’s built this way

• Everything Stage 2 needs — the hardware and the map, together.
• Tune included — so the map that makes the hardware work is in the box, not an afterthought.
• Costs less than buying the three parts separately.

In the box

• Catless downpipe — 304 stainless, hand TIG-welded, CNC billet flanges, direct OEM fit
• Cold air intake — 3.5″ (Gen 1) or 4″ (Gen 2) intake pipe, heat shield and high-flow filter
• bootmod3 Ultimate licence — cloud flash from your phone, the full Stage 1 and Stage 2 map library, custom tuning through the bm3 Tuner Directory, fully reversible to stock

Good to know

• Fits: two versions — pick yours above. Gen 1 (F chassis): F20 M140i, F22 M240i, F30 340i, F32 440i. Gen 2 (G chassis): G20 M340i / M340i xDrive, G21 M340i Touring, G42 M240i / M240i xDrive, G22 / G23 M440i. Not sure which you have? Email us your VIN.
• In stock — ships in 1–2 business days. The bootmod3 licence is issued to your account within 1–2 business days.
• You’ll need a bootmod3 Wi-Fi or OBD adapter to flash (sold separately).
• Install: professional install required.
• Warranty: lifetime on the downpipe and intake piping, against manufacturing defect (air filter excluded).
• Catless — off-road / motorsport use only.