Just installed the MF cat-back SISO on my '04 F150 SC 4X4 & now I'm getting that rotten egg cat smell. Truck's got 38K miles & never had the smell before yesterday when I installed the system. Anyone know if this is just the newness of the system "burning off" or if I've got other issues?

Also have the Airraid intake and Troyer custom tunes. Power is definitely no longer an issue thanks to Mike & the gang at TP!

Sorry this is posted to the wrong section. Definitely not OEM. Newbie posting issues...

 

It's probably just the oil on the system burning off, give it a few days and see what happens. If the truck starts to run weird, then you know you have a problem.