not starting a who better product war. I have been really happy for the last 3 years with my smarty and TSTPMX 3. I have gauges mechanical. I like the smarty for the bottem end TQ and the tuning with the Revo. and clearing and reading of codes. and to adjust my speedo. I have never had a edge. and yes they have some good safety measures you can apply. but also the TST to me is safe for it is fuel only working with your boost. not saying which one makes more power mine is a HO and I have a limit to some extent due to the VP. injectors I have been really happy with my mach 4's clean and great power and also helped with EGT's compared to the nozzles I had on before the 4's where put on. but again for my HO injectors and the smarty really made the truck wake up. not saying anything bad about any of these products but watch out buddy the diesel bug is biting you. I know you want to buy something one time and be happy and done with it. good luck.
2002 HO 6-SPD LB 4X4 QC HTT 62/14 SB-DD3600 TST PM3/*REVO-BETA*SMARTY MACH 4'S, RINGED AND STUDS, AFE/2
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FTE 6" STACK D/PRICOL GAUGES, FASS 150, VULCAN 1/2 DRAW-STRAW, 3/8 FUEL LINE, DSS-BOX DT PRO-FAB TRAC BAR, CONV-T STYLE STEERING,BORGENSON BOX AND SHAFT,DUNKS TRACTION BARS, AIR BAGS,17'' KMC BLACK HOSS, 37" TOYO MT'S 6" RCD LONG ARM LIFT. :-laf... THANKS RIP
Source Automotive