The truck is in the signature. I'm building an extensive upgrade list, which will update/overhaul every system on the truck. However, I'm up to about $20,000 in just parts and need opinions so I don't waste money, only want to replace them once, and they have to work together for the long haul. DD primary use and will also tow a 7 ton fiver on occasion. -Firestone R4 Tech vs Airbagit towing suspension -Cryoslot/Hawk LTS vs SSBC upgrade kit -GTP-38R vs upgraded stocker -Titan vs Transferflow -BTS vs Suncoast vs John Wood -Single disc vs triple disc upgrade -Rosewood vs Casserly vs DDP -CFM+ vs ATS Airblade -Evans NPG+ vs Cat ELC -ISSPRO vs Autometer -DP vs TW -Diamond Eye vs MBRP vs others -ITP FPX system VS RDP FPX -Airdogg vs FASS -FS2500 vs AMSOIL -AIS vs other CAI systems Since "try before you buy" is not an option I would like a general consenous about this. Also, there will be more "vs" questions as time marches on. Thank you.