starchland

I’m Guessing that gasket was installed incorrectly

Jub

Maybe so. Valves have been checked 2x in the last 20k from two different shops. Not really worth assessing blame here. I like both shops and stuff happens. I haven't heard back if I have tight exhaust valves but this is making me think that I'm not going to need to be highly concerned about a burned exhaust valve. I'm not really questioning where my misfire on Cyl. 4 came from at this point. I'm impressed the coilpack didn't give out completely. I also have been wondering if it's been running rough at idle or if it's just me. I guess I need to trust my instincts more. I wonder if I've been down any significant power over this. I felt like my car hasn't been rotating as well on throttle at autocross events but I did also just switch to stickier tires.