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      06-12-2008, 04:50 PM   #111
Burt Reynolds
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MPG improvement. Does the stock tune run rich? Did the tune lean things out? I have seen similiar improvment on other cars but the stock tune ran pig rich to avoid detonation and etc...
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      06-12-2008, 06:33 PM   #112
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Quote:
Originally Posted by Burt Reynolds View Post
MPG improvement. Does the stock tune run rich? Did the tune lean things out? I have seen similiar improvment on other cars but the stock tune ran pig rich to avoid detonation and etc...
I think most of the improvements are on the hwy and most of it is due to the ram air. Ive had several people tell me their mpg went up 1-2miles after installing the scoop. When cruising, your engine is just spoon fed air.
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      06-16-2008, 01:12 PM   #113
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Will we ever see this scoop for 03-05 non M's??
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      08-14-2008, 05:25 AM   #114
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Just an update on the software for RPI Z4M tune...

Gas mileage has improve upto 2-3 miles per gallon and the car still runs like a new mods coming very soooooon...
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