thanks a lot.
Also my next consideration is replacing the exhaust system with a cat-bak assemsly when the oem muffler is gone, because in north region of u.s. the normal muffler replacements would only last 1-2 years normally. rather than replacing it every two years or so, i would invest one time with a stainless assembly to last for more than 5 year at least...what do you think of this approach?