ALPHA COMPETITION Decat Downpipes BMW X3M / X4M Serie F9x

These stainless steel made Alpha Competition decat downpipes, in 3.15" / 80mm diameter, fit without modification between the turbos and the front pipes of the S58 engines fitted to the BMW X3M / X4M F9x in order to remove the main catalysts. Manufactured from high quality T304 stainless steel with handmade TIG welds, these downpipes will bring an average gain of 35hp on a stage 1 engine and a particularly aggressive sound. With a high flow structure and thermal insulation to reduce heat radiation by 50%, these downpipes clearly represent the best value for money on the market!

Specifications:

• Direct mounting
• 2-piece kit
• 100% T304 stainless steel
• 3.15" / 80mm pipes
• Specific thermal insulation
• Measured gain on stage 1: 35hp
• Aggressive sound
• Handmade TIG welds
• Assembly kit included
• Lifetime warranty

Attention: ECU calibration is mandatory