So with their $50 credit, honestly that could go towards a MPS system in the future when you drop to a 3.6" pulley....because that DP is going to help for sure...toss a PLOG in there too when you drop to the 3.6" and get it tuned...it'd not only get great MPG's and not have anymore dumb CEL's...but it'll run tons better too...also, for the love of god get some AL606's when you put that DP on...yikes on those Pulstars for a boosted 3800. These cars love copper plugs.