BMW E60/E61 M5 & E63/E64 M6 S85 V10 Evolve Long Tube Headers

Direct-fit long tube headers for the S85 V10 in E60/E61 M5 and E63/E64 M6. Not a bolt-on OEM replacement - this is a fast road or track day upgrade requiring a remap.

• 304 stainless steel, TIG-welded 5-1 merge collector for efficient scavenging
• Decat layout removes restrictive primaries - sharper throttle, stronger mid-range
• Real-world gains of 35-50 bhp and 40-50 lb.ft torque with proper tuning
• Not compatible with stock DME calibration - ECU tuning is essential
• For off-road and track use only; removes primary catalytic converters