HKS 31019-AF019 Hi-Power Cat-Back Exhaust System

The HKS Hi-Power Exhaust System is engineered from decades of endurance and GT racing experience in Japan, delivering proven performance for both turbocharged and naturally aspirated applications. This race-inspired exhaust features an innovative offset muffler design and optimized piping layout that maximizes exhaust flow by eliminating unnecessary bends, creating the straightest possible exhaust path for superior high-RPM power gains.

Key Features:

• Race-derived offset muffler design reduces backpressure and improves exhaust velocity
• Optimized piping geometry eliminates restrictions for maximum flow capacity
• Enhanced mid-range boost response and top-end power for turbocharged engines
• Improved exhaust scavenging for naturally aspirated applications, especially modified engines
• Constructed from premium SUS304 stainless steel for durability and corrosion resistance
• Precision-mandrel bent tubing maintains consistent diameter throughout
• Includes polished stainless steel tip for premium appearance

For turbocharged vehicles, the large-diameter piping and smooth flow path increase exhaust velocity, resulting in better turbo spool characteristics and stronger mid-range boost response alongside impressive high-RPM power gains. Naturally aspirated engines benefit from the increased flow capacity as modifications and tuning levels increase, allowing the engine to breathe more efficiently at higher RPMs. Select applications are available in Silent Hi-Power configuration, which incorporates an internal silencer for reduced sound levels while maintaining performance gains.