superchips are generic off the shelf chips, not worth the money at all. DHP is currently the only chip that will do anything for 3400's. there not really custom tunes, dhp is the closest to that, if you wanted a custom tune dhp is really the only way to do it
unless you have a 4cyl....then i dont believe you have a good option for chips/pcm's...superchips in general are junk
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2001 Alero GLS - Sold!
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