ok i have a 2010 dodge ram 2500 slt cummins with sinister egr delete and a flo pro turbo back dpf delete and a smarty with the ME softwear befor i did the deletes i had the smarty on the and that sucker was fast it would through me right back in my seat but no that i have these deletes on i feel as if i lost power and i dont no what to do so i was wondering if any body has any advise.... thanks

 

My .02

Replace fuel filter
Reload Smarty to ensure your on the right level
Recheck all block off plates to ensure they are tight

When my truck starts to feel sluggish I hook up my TH and go for a drive to work the engine.

 

what settings have you tried on the Smarty? i'd suggest loading a different tune and see what changes. Seems to me like it takes a couple hundred miles for the truck to learn the new parameters. you can also reload the stock software into the truck, reload the ME software on the Smarty through your PC and load your Smarty back on the truck. Don't start the truck with stock software and no DPF/EGR