yell03 Posted September 26, 2013 Report Share Posted September 26, 2013 I ordered a set of Motorcraft AGSF12FM1 (1 step colder than stock) for my 2011 GT500.I am doing a straight swap to a 2013 TVS supercharger with stock pulley.Should I call and switch the order to stock AGSF22FM1 and just gap them at 0.035 or was the AGSF12FM1 the right move? Link to comment Share on other sites More sharing options...
Dirtychamba Posted September 26, 2013 Report Share Posted September 26, 2013 you should buy NGK tr6 or tr7-IXs. i have some tr7-ix's for sale if interested. they are brand new and will sell for cheaper than what VMP asks. Link to comment Share on other sites More sharing options...
yell03 Posted September 27, 2013 Author Report Share Posted September 27, 2013 I bought the AGSF12FM1s, they should work well Link to comment Share on other sites More sharing options...
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