I got a bug up my butt last night and rotated the tires, finished off other misc, and took her for a drive. Not bad! This morning I drove her to work. It was fun seeing people freak out at lights when smoke was coming out from under my hood as various oils were burning off I think these headers are close to equal length. At idle a bit more rumble, cruising its just a normal quiet Yukon. Flooring it she fucking screams though. Not like a rowdy V8 because of the EL headers. I'll get a vid eventually. It sounds good though.