I recently installed the Momentum GT oiled on my 2018 5.3. I like how it comes with couplers for the both the 5.3 and 6.2 throttle bodies. I noticed a difference, and I was coming from the Airaid tube and their dry filter in stock box. I also have the diablo tuner on the 91 octane tune. I'm happy with it so far. I'll upgrade to the L86 intake manifold and throttle body soon so I'll just need to swap out the couple for that.