3″ Exhaust Decat Downpipe – BMW 1 / 3 Series E82 / E88 / 135 / E90 / E92 / 335 11-12

Manufactured from high quality T304 stainless steel Mandrel bent and fully TIG welded for strength and durability Free flowing catalyst replacement to get the most from the single turbo N55B30 engine Designed to improve power and torque across the entire RPM range