Anyone swapped a set of 40-series for Super 40s? Hows the drone? I'm thinking about swapping my Magnaflows for Super 40s after I get my cams installed because IMHO nothing sounds sweeter than a cammed car with chambered mufflers 


that the way it usually works out unfortunately. tons of people who "know" something but only a couple who really have experience with the issue.nickthegenius said:Yeah, I just read through a bunch of posts. Many people asked the question but out of all the questions I only found one guy that answered that he had them and it was better than regular 40s. All the rest were specualting about the subject citing Flowmasters promotional ads, etc.
and usually rev higher than 2000