Many of today’s cars come with direct injection, but it has its drawbacks. At about 40,000 miles, the intake valves on our Mk7 GTI were absolutely filthy and it was affecting performance. What’s a way to fix this? Walnut blasting. Find out more about how the process works.
#walnutblasting #volkswagen #vwgti #GrassrootsMotorsports
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This video is brought to you by:
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Host: Tom Suddard, Publisher
Special Guest: Jesse Spiker, Spiker Motorsports
Video by: Chris Tropea, Associate Editor
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More Volkswagen GTI content on Grassroots Motorsports:
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How to properly tech a used car for the track: https://grassrootsmotorsports.com/pro...
Track tires for a daily driver: Bigger isn’t always better?: https://grassrootsmotorsports.com/pro...
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