Engine tick under acceleration

Hello All,
My 13’ tundra has a slight ticking when accelerating but it doesn’t when idling or letting off the throttle. Can this be a lifter issue and is it easy to replace them? I recently had an oil change at the Toyota dealership and the ticking started a few hundred miles after that. I checked the oil level and color and it’s good. I also replaced the exhaust from the manifolds back to tail pipe 2k miles ago but I can’t hear any exhaust leak when I got under the truck. Any help would be appreciated.

 

Probably exhaust leak try a stethoscope or wait till it’s worse. Check the manifold where the SAIS port enters along with your recent exhaust connection to manifolds.