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MAPerformance
MAP Comp-Gate40 External Wastegate O2 Housing | 2003-2006 Mitsubishi Evo 8/9
PART# MAP EVO-O2H-CG40-EXT-3D( Honestly, if you find a better price we'll match it. )
Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.
Email - sales@maperformance.com
Phone 1-888-627-3736
340.19 Out Of Stock!

+1-888-627-3736 Free delivery by , to your door when ordered within hrs and mins
Evo 8/9 O2 Housing
In yet another installment of our never-ending quest for the perfect Evo O2 Housing we have utilized the new, ultra-compact CompGate40 from Turbosmart. If you're having issues with boost control and/or exhaust back pressure is overpowering the spring in your wastegate actuator preventing you from running higher boost levels this product is the answer! We recommend running this external wastegate in conjunction with your factory internal wastegate for the best of both worlds in regards to spool characteristics, boost control and boost capabilities.
Simply run a vacuum line to the external wastegate from your boost controller as normal combined with an additional vacuum line directly from a boost source to the internal wastegate actuator and you're all set, no additional modification necessary!
Features / Benefits
- Made from 304 stainless steel for superior corrosion resistance and enhanced appearance.
- CompGate40 14PSI wastegate for improved boost control and higher boost capabilities.
- Fits all Evolution 8 & 9
- Includes all necessary gaskets and hardware. (Some stock hardware is reused)
- 100% Made in the USA.
Flange
We offer this product with a 3D contoured option to ensure you have complete boost control.
Please note that this product is built to order. Based on fluctuations in demand build times may vary throughout the year. Please contact an MAP sales representative for current estimations.
Applications
- 2003-2006 Mitsubishi Evo 8/9
What's In The Box?
- 1 External Wastegate O2 Housing ( does not include Compgate 40 wastegate)
Warranty
- MAP Limited Lifetime Warranty
Evo 8/9 O2 Housing
In yet another installment of our never-ending quest for the perfect Evo O2 Housing we have utilized the new, ultra-compact CompGate40 from Turbosmart. If you're having issues with boost control and/or exhaust back pressure is overpowering the spring in your wastegate actuator preventing you from running higher boost levels this product is the answer! We recommend running this external wastegate in conjunction with your factory internal wastegate for the best of both worlds in regards to spool characteristics, boost control and boost capabilities.
Simply run a vacuum line to the external wastegate from your boost controller as normal combined with an additional vacuum line directly from a boost source to the internal wastegate actuator and you're all set, no additional modification necessary!
Features / Benefits
- Made from 304 stainless steel for superior corrosion resistance and enhanced appearance.
- CompGate40 14PSI wastegate for improved boost control and higher boost capabilities.
- Fits all Evolution 8 & 9
- Includes all necessary gaskets and hardware. (Some stock hardware is reused)
- 100% Made in the USA.
Flange
We offer this product with a 3D contoured option to ensure you have complete boost control.
Please note that this product is built to order. Based on fluctuations in demand build times may vary throughout the year. Please contact an MAP sales representative for current estimations.
Applications
- 2003-2006 Mitsubishi Evo 8/9
What's In The Box?
- 1 External Wastegate O2 Housing ( does not include Compgate 40 wastegate)
Warranty
- MAP Limited Lifetime Warranty