3″ Exhaust Decat Pipe – BMW 1 / 3 Series F20 / F21 / M135I / M135IX / F30 / F31 / 335I / 335IX 11-13
Manufactured from highest quality T304 grade stainless steel Mandrel bent and fully TIG welded for strength and durability Free flowing catalyst replacement to get the most from the N55 engine Designed to improve power and torque across the entire RPM range