Hi all, new to the forum. I have a '20 SG special. Last summer I had a stage 2 installed and the power is a lot better. My question is- if I were to install an all new exhaust system, how much extra power would that give me if any? A friend of a friend did the stage 2 and he removed the cat but other than a set of Cobra backslash slipons it's still factory. Any opinions would be appreciated 