it cant hurt - if you can, get the element out in one piece. That is the old style cats that have a lot of platinum and other precious metals - it is worth a lot to cash in regardless of condition. If you want the best header, get the DG header on this site - pricey but the best there is. Pacesetter is a cheep header that is not built for the daily use of a truck - it is a horsepower header at high revs above the power - DG is built for max power at motor torque peak. It was patterned off of the Doug Thorley tri-y header with improvements. That cam and the weber with the right header will make that truck scream in a good way.