04-26-2017, 01:51 PM
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#1 (permalink)
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Premium Member
Join Date: May 2013
Location: St. Pete, FL
Posts: 3,848
Drives: 520whp Fire Breather
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Quote:
Originally Posted by brucelidat
What exactly is the si trim? Does Stillen have a higher power version now or is that something you get through Vortech? Also, just curious, how much mpg do you lose from the SC always spinning? I already get bad mileage because of the 4.08. Figured that could actually improve a bit potentially or not get worse with tt since I would lose the 4.08 gears.
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I can't speak to the SC, but I'd imagine your fuel economy would still be far more dependent on your driving habits than whether there is an SC or TT installed. If I drive like a normal person, I still get OEM MPG (a little better, actually). I am TT though.
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