Quote:
Originally Posted by gsxr
1 MPG is probably optimistic... figure that as a maximum. 
And yes, you can leave the EGR valve in place, with the plate sandwiched in between, to pass a visual inspection - no problem.
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Well, THAT was one of the quickest and easiest mods I've done in a while.
Scrounged up a scrap piece of heavy gasket material and a scrap piece of heavy galvanized sheetmetal.
Unbolted the EGR at the upper end, and pulled the stock gasket out to use as a template.
Cut out two gaskets (using scissors) and one metal plate (using tin shears) - without cutting out the center hole in any of them of course.
Sandwiched the metal plate between the two gaskets and put it all back together.
35 minutes start to finish - including 10 minutes spent scrounging the materials.
Cost - $0 since the materials were just scrap I had lying around anyway.
If that even gets me 1/2 mpg it will be the most cost-effective economy-enhancing mod of all time!