Im about to get a exhaust system.. I have a 2000 chevy s10 4 banger...I called meinike to get a estimate and they told me 240 plus tax for a flowmaster 40 series with a turndown and they told me they dont know what kind of pipeing they would use.. They also told me that flowmasters dont go straight in and straight out and I should get offset center? whats that? Is the price accurate and has anyone else went through meinike?