This ceramic-coated stainless steel decat downpipe is designed to improve exhaust gas flow, turbocharger efficiency and engine performance on the Subaru Impreza NewAge WRX STI (2001–2007).
Manufactured from high-quality T304 stainless steel, the downpipe replaces the restrictive factory downpipe and catalytic converters with a freer-flowing, one-piece design featuring a 3" bore and 2.5" outlet.
Removing the catalytic converters and increasing the exhaust bore helps reduce back pressure, allowing exhaust gases to exit the turbocharger more efficiently. This can improve throttle response, turbo spool-up and overall engine performance, particularly on modified or tuned vehicles.
The downpipe also features a ceramic coating designed to provide improved heat protection, helping reduce radiant heat within the engine bay. This makes it particularly suitable for performance applications where exhaust temperatures can become significantly higher.
TIG-welded construction and CNC-machined flanges provide strength, durability and accurate fitment, while the integrated lambda sensor boss allows the original oxygen sensor to be installed.
Features
Manufactured from high-quality T304 stainless steel
3" bore with 2.5" outlet
One-piece decat downpipe design
Replaces the standard downpipe and catalytic converters
Ceramic coating for improved heat protection
Helps reduce radiant heat within the engine bay
TIG-welded construction for strength and durability
CNC-machined flanges for accurate fitment
Lambda sensor boss for original O2 sensor
Freer-flowing design to reduce exhaust restrictions
Potential improvements in throttle response and turbo spool-up
Ideal for performance and motorsport applications
Fitment
Subaru Impreza NewAge WRX (2001–2007)
Subaru Impreza NewAge STI (2001–2007)
Chassis: GDA
Please Note: This is a decat downpipe that removes the factory catalytic converters. It is intended for off-road and motorsport use only and is not suitable for use on UK public roads.
