I recently replaced my stock exhaust manifolds with JBA shorty headers on my 2019 with 5.7L, due to cracked exhaust manifolds. I had purchased Remflex gaskets (p/n 6022) to install, but noticed that the holes in the headers did not match up with the holes in the gaskets. More specifically, there was an extra hole in the header and no hole in the gasket in that position. Instead of trying to drill a hole in the brittle Remflex gasket, I used the gaskets that came with the headers, as I had seen others reporting no leaks after install. Big mistake. A couple months later, I developed leaks on both sides again. A retorque of all the bolts only made a minor improvement. Now my passenger side leak has gotten really bad and it sounds worse than when I had the cracked manifolds.
Has anyone else used the JBA shorties with Remflex gaskets? If so, what did you do? Did you drill a hole in the gasket (risky) or did you just put bolts in the holes that the Remflex gaskets allow? I also just bought ARP bolts and there are only 17 bolts in the pack. I currently have 10 bolts holding on my passenger side header. Do I not need all ten? Thanks for your help, in advance!
Has anyone else used the JBA shorties with Remflex gaskets? If so, what did you do? Did you drill a hole in the gasket (risky) or did you just put bolts in the holes that the Remflex gaskets allow? I also just bought ARP bolts and there are only 17 bolts in the pack. I currently have 10 bolts holding on my passenger side header. Do I not need all ten? Thanks for your help, in advance!
