Subaru Impreza WRX STI Ver.10 (GR) at SuperCircuit Exhaust Pro Shop....
Stock standard exhaust system of the Impreza WRX STI....
Stock vs. performance exhaust system.....
This is the stock downpipe....
SuperCircuit cat deleted downpipe....
Cat deleted downpipe by SuperCircuit for track and circuit performance....
For more information, please contact SuperCircuit Exhaust Pro Shop, Sunway. Tel: +6 03 5637 2855 or visit us at www.h-performance.com.my.