I have an E99 SD and just installed a couple of mods that i got from BDP. I went with single shot stage 1's a D66 and a ts 6pos chip from beans. Truck seems to run ok in stock and econo tunes (idles a little rough, kinda lopes a little) but daily tow and hot tunes are having issues. Whisper was workin fine but now doesnt seem to be workin as well after disconnecting the batteries. When I switch to daily tow and hot tunes at idle the truck idles down real low and has barely any throttle response but once the rpms are above about 1500 the truck will really go! The problem seems to be only at those low rpms. Wondering if it could be an oil or fuel pressure issue or a tuning problem? Any advice would be appreciated!!