I'm getting a miss and a popping sound from the exhaust between 2-3k at cruise and partial throttle. As soon as I start opening it up and over 3k it feels great.

I've recently installed new Patriot heads and haven't been tuned yet. Plus I had a 3" dumped exhaust made using Mac Lt's. custom X-pipe and dynamax bullets.

I'm scheduled Tuesday for a tune and was hopping to figure out whats causing it.

How bad would it be if one of the cams where off one tooth? Which I doubt but just wanted to ask. Plus I was wondering about an exhaust leak before the front o2's, but I really don't hear one.

Could it just be a tuning issue? But I couldn't image a tunning issue that would cause this?