HKS High Power Exhaust - Subaru Impreza WRX/STI 02-07 M&R Automotive you’ll need the adapters to

you’ll need the adapters to gain that extra droop

the over wattage bulb has a LOT of disadvantages - see next question below

Correct suspension geometry

Built for Strength and Functionality

VX2 Plus LTD

HKS High Power Exhaust - Subaru Impreza WRX/STI 02-07 M&R Automotive you’ll need the adapters toHKS 3106 EX008 High Power Exhaust Subaru Impreza WRX STI 02 07 Inspired and designed from endurance and GT racing in Japan. HKS developed its Hi Power Exhaust system for turbocharged applications. They have incorporated this new race inspired offset muffler and piping design into many street applications, which offer a greater exhaust flow and higher PRM power gains due to the less restrictive design. This is achieved by eliminating unnecessary bends