Description

Downpipe for B58 M240i 340i 440i 540i 740i Xdrive 2016+ 4.5 inch catless

Over Engineered Design BMW B58 Catless Downpipe is a direct replacement for the restrictive OEM downpipe with catalytic convertor.

Over Engineered Design’s B58 Catless downpipe reduces back pressure, resulting in faster response, increased power and a more aggressive exhaust note.

• T304 stainless steel, TIG welded back-purged construction
• Smooth bends to ensure increased flow
• Fits original and aftermarket exhaust systems
• Stage 2 software is required to avoid check engine light.

Please note: This product is NOT suitable for road use as it does not comply with emission standards. For use on track ONLY.