How long should I run new cat before inspec.
 

I just had my Magnaflow catalytic converter installed this morning (Thursday, Dec. 22) and was wondering if I should run it a while before going through emissions again or go as soon as possible. I installed new O2 sensor and passed all emissions except hydrocarbons which did go down from 279 to 207. So should I run it a couple of days or get it there now? Saturday would be a good day for me to go, because I'm up early and have to ride past inspection station anyway. Any thoughts will be welcome. Thanks, James in NJ

saturday should be a good day to go, but i would recommend running it for a few days, for a little bit just to get the cat all prepped

Go anytime, as there is no prep needed. We install cats every day and run the test right away.