X-Force Pro Series Catted Downpipe - 08-14 WRX, 08-21 STI

This is the X-Force 3-Inch Catted Pro-Series Downpipe. X-Force designed this downpipe with a larger diameter and with smooth bends to allow the turbocharger to exhale those exhaust gases without any obstructed interruptions to greatly improve the turbo response and performance. A good downpipe is one of the more popular upgrades in the WRX as the factory downpipe is highly restrictive by design, and with a proper tune, there will be a good amount of power and performance to be gained. 

HIGHLIGHTS:

• 304 stainless steel construction
• 3-inch piping diameter
• 2-piece design with a bolt-on high-flow catalytic converter
• Direct replacement for your factory downpipe
• Increases both horsepower and torque
• Helps produce an aggressive exhaust note
• Reduces the turbo lag while improving the throttle response
• Proper tune is recommended to maximize the power and potential of this downpipe