Hai people I have a question and that: How do I get my sierra louder!?!? Have sport air filter candle on it the exhaust is completely empty except for the walker sports pot! While gasting he really has an aggressive sound and last but not least because of the empty kat aner when I go from the gas purrs like n kittens I just can’t get any horns or the like, what can I recommend? mfg oliver