ok i just bought a used hhp 3 for my 97 camaro i was just wondering if this thing actually works and is there pruff out there like dyno records to show it? and if so how much would you say this thing really helps? i was looking at a through posts here and people seem not to like it but the only mods i have are flowmaster, 160 thermo and CAI and now hpp 3 but just wondering? soon longtubes and catback

 

MIne did make a diff when I was just catback and CAI. I could tell when it was removed. Can't show a dyno because it was already on when I went. It will not help and will potentially hinder you once you have the LTs on, even Hypertech admits it on their website.

 

so will this be the same when i get long tubes? and is the hypertech useless when i get hearders? sould i go with lt1 edit by then?