Invidia | Q300 Cat Back Exhaust - WRX/STI 2002-2007

Invidia Q300 tuned muffler exhaust systems offer a rich exhaust note which enhances the natural tone of your car's engine. Invidia's high flow design ensures efficient exhaust flow for optimum engine performance.

Second to none quality assured:

• Power increase - 17hp
• Torque Increase - 26ft-lb
• 76mm diameter, 1.5mm thick mandrel bent S304 Stainless Steel piping -  greatly reduces the risk of cracks and breaks developing, reduces rasp and vibration.
• Tuned muffler - Optimised sound and exhaust flow
• Cast flanges - optimum fitment and durability
• Machine welded - Fantastic appearance and uniform strength
• 110mm Titanium Tips

NOTE: 01-07 WRX and 01-05 STI do requre extention to make it fit to stock down pipe.. WRX and STI during 01-07 have 4 different down pipes

Will only direct fit to 06-07 STI