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529 Posts
I just called sparks yesterday and they have a set date for the release of there exhaust
. the end of this month there exhaust will be ready :twisted: Isn't this the greatest. the bs is finally over and the greatest exhaust ever is about to be released. when it's ready I will get it and post the results. I don't have a dyno or anything but after running a gnc racing raptor for a year I can tell major hp. 