gstraw Posted June 30, 2014 Posted June 30, 2014 Not scientific if course but I'm not surprised with the result. Reduced a restriction so my mpg is higher by around 4mpg!! Very impressive! Car also sounds great! Quote
Will370z Posted July 1, 2014 Posted July 1, 2014 I found the opposite on my 350, I found my mpg plummeted, something to do with the noise and my heavy right foot I believe. Quote
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