just got a new 2018 charger Daytona with the 5.7 turned in a 15 r t same engine the 18 has cold air intake bigger exhaust seams to have more hp then the 15 both are rated at 370 hp but what is the real h p on the Daytona with all the extra Daytona goodies

 

Both are the same HP wise, no difference. Transmission tuning may be different which is why you may notice a change. Butt dynos are like that.

https://www.digitaltrends.com/cars/2...e-performance/