Quote:
Originally Posted by ecomodded
It would be wiser to buy a tuning box and gain 40 or more hp that way.
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Only a small precentage of vehicles will see any gains from cheap tuning boxes. You're also taking a bit of a gamble as engines have been destroyed by low end ECU bypassing boxes.
You won't gain 40 or more HP, you'll gain at most 40hp (unless you have a Cummins or something). I have a $1200 tuning box (with engine damage warranty) in my 2.5 TDi for a claimed 30hp increase. This still doesn't fully address the low end hole before the turbo spools.