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  • $ 35999

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 waste gate 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.


We offer this product with a 3D contoured option to ensure you have complete boost control.

Advanced Ceramic Coating

Our advanced ceramic coating is applied on the outer surface to minimize heat transfer and maintain exhaust velocity for maximum performance. Available in black and it looks great under the hood as well!

Warranty Information

At Modern Automotive Performance we strive to offer only the highest quality products and stand behind our work. All MAP brand products will include a one year warranty from the date of purchase. In the event of a failure from a manufacturing defect we will either repair or replace the product at no cost.


This product is intended for off road use only. As sound level and emissions laws vary based on location please consult your local authorities for additional information.

Why Choose MAP Products?

If you are looking for some of the best fabrication solutions, or products for your vehicle, Modern Automotive Performance has what you're looking for. Our in house fabricators have over 15 years of experience in the import and fabrication industry, and have made everything from simple brackets, to mass produced products, to all out one-off turbo systems, and utilize only the highest quality of materials, tooling, consumables, and processes to bring our customers the best fabricated products and services available at industry fair prices. Whether you're looking to have a blow off valve flange welded and installed, purchase one of the products in our ever expanding MAP product line, build a fully prepped race car, or anything in between, we have what you're looking for. Whether you have a lightly modded daily driver, a weekend warrior, or a tube chassis race car, the fabricators and staff at MAPerformance will turn your dreams and ideas, into the products and power that no one else can deliver.

Please note that this product is built to order. Based on fluctuations in demand build times may vary throughout the year. Please contact a sales representative for current estimations.

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