I installed the Arvinode exhaust system on my kar several months before my engine rebuild and I couldn't understand why people would have complained about the loud exhaust sound form the original Arvinode systems back in the day. After the rebuild it can understand as my exhaust sound has definately increased to the level that some would say is "loud" and "agressive"<img src=images/icon_smile.gif border=0 align=middle>. I guess the increased exhaust sound is due to the better compression from the new forged pistons and new valves or is there some other explanation? <img src=images/icon_smile.gif border=0 align=middle>
Jack