So I had the resonator removed today on my w211 e63 and I just noticed something a little odd. I put the car in park to rev the engine to hear the exhaust "which sounds unbelievable" and when I revved it I only get the exhaust sound for a split second. If I give it a little gas it sounds like the engine is whining but not giving any power. I could be a little on the dumb side right now and this could be normal but I wanna make sure nothing is wrong with my car.

PS. If everything is fine with my car I HIGHLY recommend this mod

Thanks guys