Overview of Yoshimura RS4 Exhaust System - 242900D321
Stainless Header
Aluminum Muffler
All systems and mufflers are constructed entirely of 304 stainless steel for a long lasting, durable and rust-resistant life
Full systems are lighter than stock and outperform stock exhaust system throughout the entire RPM range
Header and tailpipe feature polished 18-gauge 304 stainless steel CNC mandrel bent construction, oversized step tube design, and integrated O2 sensor bung (for integration with PIM2 and Data Box)
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