OBX lontubes installed on my truck
#11
Yeah stock gaskets. The only thing I didn't use from the was the band clamp instead I got the y pipe welded. I did mesure them before I put them on and 1.75" on the primaries 2.5" collector and 3" on the y pipe.
#14
Yeah I ended up getting catalytic converter codes because I delete the cats. That's where the tune come into place so that you get rid of the check engine light and of course the truck will performe 10X beter haha lol