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GrimmSpeed Uppipe 3-Bolt Inlet 44mm External Wastegate V-Band WRX/STI/LGT/FXT


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An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo. This facilitates lower backpressure at the turbine, allowing for increased boost control, faster spool-up and greater top-end power. The GrimmSpeed EWG Up Pipe has a larger internal diameter than your stock unit, allowing a higher volume of exhaust gas to reach your turbo more efficiently. This helps maintain boost levels further into your RPM range. Depending on your specific setup, these improvements can net a 10-40 HP increase. An internal wastegate can create a larger amount of turbulence in exhaust flow through your turbine housing; moving to an external wastegate eliminates much of that turbulence and isolates the turbo from what little turbulence still exists as your wastegate opens and closes.

3-Bolt Inlet Flange fits most 3-bolt headers!

321 Stainless Steel Interlocking Flex Section - Reduces fatigue and facilitates thermal expansion

Contoured EWG Side Outlet - CNC bent and laser cut, this EWG exit allows exhaust gas to exit with maximum efficiency

2.0mm Tube Thickness - 33% Thicker than the competition

1/2" Stainless Steel CNC Flanges - Fully machined, these beefy flanges offer perfect fit and transition every time

10+ WHP Gain - Ask your tuner what you can expect based on your particular setup and goals!

1.85" Inner diameter - Supports 600whp+

FARO Arm Designed - Allows more precise design and a stronger, better fitting product

This year has proven to be a bit different than expected, so we must note that there is the potential for shipping and inventory delays due to scarcity and other factors impacting our world. DRP remains fully committed to pursuing the completion of your purchase within a reasonable manner under the current circumstances. Feel free to contact us to confirm availability of your favorite items!

This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to