Well, I've got about 65 miles on my new Performance OFV and I don't think I could be more pleased! The short of it is - smoother idle, quieter idle, better throttle response and quieter engine at all rpm's. This much improvement pretty well confirms that my stock OFV was operating well below optimum.

Thanks for a GREAT product Greazzer!

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Baton Rouge, LA
1977 300D Non-Turbo

Yes this does improve performance. Throttle response is more robust and the engine revs up much quicker and feels stronger. I saw an improvement with a new stock OFV from the dealer but this modified one is a bigger improvement.
Highly recommended!

Thank you Sir for the feedback !