The stock Downpipes on the Subaru WRX/STI are restrictive and therefore limit the amount of horsepower your engine can produce. Tomei Race Straight Downpipe dramatically improves exhaust flow and significantly reduces over 53% of weight vs. the stock Downpipe. Addition to massive torque and power increases, lightness dramatically improves handling. Increasing the diameter from 60.5mm to 76.3mm results in increased flow while changing the material from steel to 304SS drastically reduces weight from 22.71lbs to 9.48lbs. Features:

• Made from SUS304 for both the flange and pipe
• 76.3mm large diameter increase flow
• 11-10mm thickness at each flange
• O2 Sensor Bung
• Temp. Sensor Bung
• High quality pipe bends and production methods
• The lost wax process helps ensure that exhaust leaks are prevented
• Superb welding of the flanges
• 53% reduction in weight
• Clean look of no welds

• Subaru WRX STI 2004-2007

• This product is intended for RACE USE ONLY