Exhaust note changed
 

Car developed a rumble. No knocking, no ticks but it sounds like almost like an UEL header.

All the exhaust clamps at clean.
No boost creeping
No check engine lights
Knock test passed all the way to redline.

I'm expecting to find a bent rod.

Any suggestions?

Compression test might shed some light.

You may be down a cylinder... AFR?

I'll hook up my cable and log it tonight.

My failsafe reports a steddy 13.8 at harm idle. I see it at 11 WOT. Haven't had or seen any boost creep other than a spike to 7.8 but I'm thinking my evap is boosting my gas tank. I kinda want to delete my evap.