Borla 15-16 Dodge Challenger SRT 392 S-Type Catback Exhaust Single Split Rear Exit (No Tip)Borla 15 16 Dodge Challenger SRT 392 S Type Catback Exhaust Single Split Rear Exit (No Tip) System contains a merge X Pipe for increased performance and improved sound. This system INCLUDES MDS (multi displacement system) valve simulators which ELIMINATE the MDS valves. This avoids any warning lights on the dash while providing maximum flow at all times. Tips NOT included. Use factory valance tips. BORLA(r) Cat Back(tm) & Axle Back exhaust systems