I just towed our 8000 pound trailer since the Mopar Exhaust brake was installed. The brake works GREAT! Seems that I lost some power though. Is that usually the case? I'm looking to start bombing! Need more power! What would be the most useful product to start without going through a clutch replacement right away. It's not even a year old yet and I don't want to think about the clutch yet. EZ Box is what I thought. Also a 4 inch exhaust. Maybe injectors after the clutch replacement down the road. With all these mods in place, is this engine still dependable or am I overworking components for an early failure? Thanks in advance...