Who has compared their 4.4 level 9 vs level 7?
Who has compared their 4.4 level 9 vs level 7?
I was reading ain another thread that a Smarty user got more power using his truck on level 7 than level 9 (4.4 tune of course).
Anyone got any info on this?
Thanx.
Anyone got any info on this?
Thanx.
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