Inspired and designed from endurance and GT racing in Japan, HKS developed its Hi-Power Exhaust system for both turbocharged and naturally aspirated applications. HKS has incorporated this new race inspired offset muffler and piping design into many street applications, which offers a greater flow and higher-PRM power gains due to the less restrictive design. This is achieved by eliminating unnecessary bends for the straightest exhaust path. For turbocharged applications, the large and smooth exhaust flow allows greater exhaust velocity for better mid-range boost response and high-RPM power. Like Drager Exhaust systems, Hi-Power Exhaust systems are made from SUS304 stainless steel muffler and tip assemblies.

Inspired and designed from endurance and GT racing in Japan, HKS developed its Hi-Power Exhaust system for both turbocharged and naturally aspirated applications. HKS has incorporated this new race inspired offset muffler and piping design into many street applications, which offers a greater flow and higher-PRM power gains due to the less restrictive design. This is achieved by eliminating unnecessary bends for the straightest exhaust path.

HKS ES Premium Series Cat Back Exhaust For 2011 Subaru STi Sedan. Made from 304 Stainless Steel, it features 65mm pipe diameter (2.5" dia) and the tips are 115mm in diameter or (4.5" dia.).

Inspired and designed from endurance and GT racing in Japan, HKS developed its Hi-Power Exhaust system for both turbocharged and naturally aspirated applications. HKS has incorporated this new race inspired offset muffler and piping design into many street applications, which offers a greater flow and higher-PRM power gains due to the less restrictive design. This is achieved by eliminating unnecessary bends for the straightest exhaust path.

Special Edition HKS Carbon Titanium Hi-Power Exhaust systems are exclusively available for certain popular applications. These exclusive versions of the Hi-Power Exhaust consist of a carbon fiber wrapped muffler shell, titanium tip, and polished SUS304 stainless steel piping.

HKS HI-Power Spec-L Muffler for 2013 Subaru BRZ / Scion FRS

HKS Legamax Exhaust improves the appearance and performance of the 2013 Subaru BRZ / Scion FRS. The exhaust features large diameter slotted tips that help eliminate lower exhaust resonance. The exhaust reduces stock exhaust pressure loss and improves low-speed torque and engine response.

HKS DOWN PIPE SUBARU WRX / STI 02-07. This down pipe is for use with the stock turbo and HKS Exhaust. It Eliminates the (2) Rear Cats (Off-Road Use Only), The down pipe is Stainless Steel / Coated. For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. All HKS down pipes are FOR OFF ROAD USE ONLY. Fits SUBARU Impreza WRX 2001-2003 2.0 Turbo ;

HKS Bellmouth Downpipe for 02-07 WRX / STi. Cast Bellmouth with SUS304 Piping / Eliminates (2) Rear Cats (Off-Road Use Only)

HKS Bellmouth Down pipe for 2008-09 Subaru WRX / STi (WRX 5-door). For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. All HKS down pipes are FOR OFF ROAD USE ONLY. Item Features a Cast Bell mouth with 75mm SUS204 piping and 2 resonators.

HKS Uppipe for SUBARU 2002 - 08 Impreza WRX , 2004 - 07 STI, 2004 - 07 Forester XT, 2004 - 07 Legacy GT / Spec B. For use with the stock turbo - (Off-Road Use Only). Finish and Material: Stainless Steel / Polished

The Turbo Timer Type-0 features a red LCD backlit display for easy visibility, 2 timer modes, and a battery voltage meter with a peak value indication and warning function.

HKS Turbo Timer Harness For 2008-11 Subaru WRX / STi

SUBARU Impreza WRX / STI 2002-2007 Turbo HKS Turbo Timer harnesses allow for quick and simple installation of HKS Turbo Timers. Many popular applications are available. *HKS systems are compatible with most OE and aftermarket security systems and will allow the engine to run ONLY if the parking brake is engaged.

Upgrade the stock suction hose to aluminum pipe without removal of the sound generator. This product was designed to provide the most appropriate sound. The suction pipe improves the engine compartment appearance. Installation of this product does not affect the stock control system. (Special Order Item)