HKS 32016-AT123 Hi-Power Spec-L II Cat-Back Exhaust System Stainless Steel

The HKS Hi-Power Spec-L II is a high-performance cat-back exhaust system engineered to deliver the optimal combination of lightweight construction and power gains. This second-generation design features interchangeable titanium tail tip finisher covers, allowing for customization in materials and styling to achieve your desired finishing touch.

Performance Features:

• Straight-through structure reduces exhaust pressure by up to 60% compared to stock
• Capable of handling over 350 PS (horsepower)
• Weighs only 22 lbs (10.0 kg) - 44% lighter than stock exhaust
• Achieves weight comparable to titanium systems at a more cost-effective price point
• Lightweight philosophy realized through careful reduction in each component rather than removing sound-dampening materials

Construction & Design:

• Premium SUS304 and SUH409 stainless steel construction
• 94mm burned blue exhaust tip diameter with titanium tail cover
• 60mm to dual 50mm piping diameter configuration
• Advantex wool equipped silencers for high-quality sports sound
• Maintains street legal JASMA certification status

Sound Characteristics:

• Sound level: 90 dB at close range (vs. 86 dB stock)
• Idle sound level: 59 dB (vs. 54 dB stock)
• Produces an aggressive yet refined sports exhaust note

This complete cat-back system includes main pipes, center pipe, and muffler assembly. The ultra-efficient compact silencer design delivers significant weight reduction while maintaining excellent sound quality and power characteristics throughout the RPM range.