Dynomax turbo vs Flowmaster Delta 50

[wolffcub]

Just thought i would post so others know and might help someone make future decisions. I built my exhaust setup using 2 delta 50's with my fentons. Granted they sounded great at idle as soon as you would take off the cab would do nothing but resonate LOUD. If i were to floor it it would be such a loud rasp from the end of pipes and so loud inside the cab it was actually getting to point your ears would start to hurt. You could not even hear the person next to you if they were trying to talk when cruising at 1800 or above rpm. The deltas have no packing and only use chambers in a linear fashion. The dynomax has packing and chambers that a kinda "s" flowing in direction.

I posted a long time ago about people helping me to identify what a loud raspy / chatter sound was when accelerating heavy. Turns out it was all just the mufflers. For some reason the downpipes and the long pipes before the mufflers were actually putting out the resonating loud rasp. Under the hood when working on the engine and revving it it was unbearable.

Installed the Dynomax turbos this evening and what a difference. I know some like rasp but out the tail is fine but to me the ride should be enjoyable. The ruck sounds so nice now. A very quiet low grumble at idle and when i stomp on it no rasp what so ever in the cab but just a louder grumble. Even out the pipes it has no rasp. Has a nice muscle sound to it under acceleration.

I know im going to get flack for this from others, but it defiantly has more pull now and when im up at 3000 rpm it does not sound like it wants to jump out of the truck anymore and its smoother. Could possibly the different back-pressure and a flow characteristics contribute to this?