HKS Legamax Premium Exhaust (Rear Only) - Impreza GVF GVB Shampoo Independent tests have shown average

Independent tests have shown average gains to be in the neighborhood of +30-35 horsepower with large gains in mid-range torque and upper RPM horsepower

ethanol content

Requires 'A' & 'B' Looms or 'A' & 'B' Pin Kits

drawing attention to the wheel nuts within the wheel area

and developed a damper that is optimal for progressive springs

HKS Legamax Premium Exhaust (Rear Only) - Impreza GVF GVB Shampoo Independent tests have shown averageHKS specializes in aftermarket high performance parts and is perhaps the most well known aftermarket brand in the world. Formed in 1973, and named after the founders Hasegawa, Kitagawa, and Sigma, HKS began tuning engines and cars. Their vision was to tune and manufacture engine components that surpasses OE Manufacturers. They now produce some of the highest quality aftermarket parts on the market, with some of the most innovative design available.