HKS Sport Cat-Back Exhaust – 2003–2006 Mitsubishi Lancer Evolution IX (CT9A) / Mitsubishi Lancer Evolution VIII (CT9A) / Mitsubishi Lancer Evolution VIII MR (CT9A)

The HKS Sport Cat-Back Exhaust provides an application-specific exhaust configuration. Application: 2003–2006 Mitsubishi Lancer Evolution IX (CT9A) / Mitsubishi Lancer Evolution VIII (CT9A) / Mitsubishi Lancer Evolution VIII MR (CT9A).

Design and operation

Pipe diameter, routing and silencer construction influence exhaust flow, sound and clearance. The useful comparison is the complete configuration: a rear-section assembly and a system that includes center piping do not replace the same factory components.

Technical details

• Manufacturer part number: 31013-BM001.
• Application: 2003–2006 Mitsubishi Lancer Evolution IX (CT9A) / Mitsubishi Lancer Evolution VIII (CT9A) / Mitsubishi Lancer Evolution VIII MR (CT9A).
• Exhaust outlet specification: 106 mm.
• Main-pipe specification: 75 mm; this does not describe every section of the system.
• Pipe specification: 75mm mm.

Installation and selection

Match the chassis, engine, body style and supplied exhaust sections to the vehicle. Check compatibility with existing headers, front pipes and catalytic converters. Ground clearance must be assessed at the vehicle’s actual ride height.