HKS Legamax Premium Exhaust (Rear and Center Pipe) - Impreza GVF GVB Waxes AEM's Wideband UEGO (Universal Exhaust

AEM's Wideband UEGO (Universal Exhaust Gas Oxygen

and were optimized through repeated testing on the actual vehicle

and the best muffler was completed

not only will it not be able to move according to the road surface

HKS Legamax Premium Exhaust (Rear and Center Pipe) - Impreza GVF GVB Waxes AEM's Wideband UEGO (Universal ExhaustHKS 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.