Ok guys, I have searched around tuners and can't seem to find what's best for me. I bought my car with an aftermarket muffler that sound pretty good while idling, deep tone sound to it, no high pitch honda muffler lol. I just hate how loud it can get sometimes when I'm just cruising.What i want to do is have my local muffler shop fabricate me some piping and install another muffler at the end, I'm just not too sure which would help better on the performance part. I'm thinking 2.5 in piping all the way but many people have 3 in. all the way. As of right now I'm running a 14b and later down the road i will be running a 16g, that's as big as I will go. Once again I'm just looking for something a little quieter and gain a little + in performance.