F10 F11 F07 535i & F06 F12 F13 640i N55 catted downpipe, BM-EXH009CAT

Direct-fit 4 inch catted downpipe for N55-powered BMWs: F10 535i, F11 Touring, F07 GT, F06 Gran Coupé, F12 Convertible and F13 Coupe. No cutting, no welding - bolt on with your stock exhaust or any aftermarket system using the OEM flange.

• 200 cell metallic cat - flows significantly more than the restrictive OEM 400 cell ceramic unit, emissions-compliant for off-road use only
• 304 stainless steel construction, TIG welded, with V-band flange and retained flex section for durability and fitment ease
• Delivers crisper throttle response, quicker turbo spool and stronger mid-range torque - ideal for fast road or track day use
• Fully compatible with all major ECU tuning platforms and aftermarket exhausts