As i know dual is for sounding. So i dont care about sound. I need some hps over that
If i need sound i will buy v8
At the moment im thinking about single system (only new perfomance muffler and new tip). Have any one done this here? All i found was only dual..dual..dual http://www.flowmastermufflers.com/pr...oducts_id=3383
And thats all? Should i change any other things and what is default pipe diameter (2.5" or 2")?