Before I got my 2019, I had a '15. I chose the S&B cold air intake because it drew more cold dense air away from the engine. Did a custom exhaust (not store bought) which located the Dynaflow further back for improved scavenging. Increased the diameter of the tubes by another 1/4", removed the resonators and had the factory tips enlarged to fit. Before I installed the Diablosport tune, I had a net horsepower gain of around 17 horsepower. I do a lot of performance marine engines, so I'm always skeptical about these claims of storebought horsepower. You'd be amazed how much it costs just to gain 100hp. With so many variables, aspiration, exhaust, injectors,coils, plugs,etc. Be careful in the future before you make any further purchases. The best advice you'll ever get is on this forum. I'm a true believer in the old "Any of you guys try this part/component before I buy it?" You'd be amazed on how you'll be able to make an educated decision. Just my 2 cents Bro, Good luck with your mods!!