HKS found a  +3 HP and +1.2 ft/lbs gain on a stock vehicle. The Spec-L combines larger exhaust piping with smooth bends to provide you with an unobstructed flow path for the exhaust gases to escape, creating a race-inspired sound with more performance. 

HKS Spec-L Exhaust System

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SPECS:

• 304 stainless steel construction
• 65-50mm piping diameter 
• Smooth bends
• Improves the exhaust flow
• Creates more power, performance, and improves the low-end torque
• Produces an aggressive exhaust note
• Exhaust hangers welded onto the OEM location to make for a direct exhaust replacement
• Will include new hardware and O-ring gaskets

 

MORE PERFORMANCE WITH THAT RACE-INSPIRED SOUND

This is the HKS Hi-Power SPEC-L Exhaust System. This exhaust system features a larger piping diameter, smooth bends, and durable stainless steel construction to provide your vehicle with a lifetime's worth of performance. The design removes any restrictions to the exhaust flow that is associated with the OEM design, allowing your engine to exhale much easier for improved horsepower and torque, all while creating an aggressive exhaust note.