× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Define difference between upgrade & modified
Posted to Emissions Forum on 11/3/1999 1 Reply

[...trimmed text...]

You highlight the primary complaint I personally have about the current requirements as well. Just a little background--ARB classifys aftermarket catalysts separately from parts defined as "replacemen... Login to read more.

1 Replies Received (View Replies)