BMW M3/M4 F80/82 Stainless steel Performance Downpipe

Models

2014+ BMW M3

2014+ BMW M4

The OEM downpipes cause a major restriction in exhaust flow because of their integrated restrictive catalytic converters. This results in excessive backpressure and excessive heat, which ultimately affects overall performance at all RPM loads.

Preformance Downpipe for BMW M3 and M4 by Bosstcustoms.ca

Stainless O2 sensor bung locations are precisionly mounted in the factory locations.

BMW M3/M4 Downpipe Features:

• Approximately 10-15 whp after installation
• 2 flex sections
• Precision TIG welded joints
• Heavy-Duty Stainless V-Band/Exhaust flanges
• Factory O2 locations retained with Stainless Steel bungs
• Reduced underhood temperatures
• Increased MPG
• Faster Spool
• Enhanced Throttle Response
• 100% High quality stainless steel construction
• 100% Bolt-on
• Catless