I know that it has been covered here before, but what are the ups and downs on this? Any Dyno figures or sound clips? I really want to do this and want HP Gains rather than sound. I am sure it can't sound too bad. I have access to a Dyno so if anyone lives in S-Cali (Orange County) and wants to Dyno their car for free let me know. I mean, for free but for experiments on this ONLY. to show some gains on this experiment. I want to Dyno a car that has removed the pre-silencer or is thinking about doing it maybe we can do a before and after. Let me know on this.

Thanks in Advance!