Originally Posted by Toyhauling
Quick question. Can you add the Tuner with out removing the DFP? Does the tuner void any warranties I see that removing the DFP does so I was just curious. The truck as 12k miles on it hardly ever driven. I was trying to decide how long to wait after buying before blowing out any warranty issues haha.
Here is how it works. The "Dash daq" programmer that "Spartan" uses, downloads the engine and trans factory programming on a "Flash Card", and keeps it there. The tuner uploads the Spartan program to your vehicle. By doing this, none of the factory settings are changed, (which can be traced by the dealer if they are simply changed), instead it stores the factory settings separately. Second the DPF filter is "Inline" in the exhaust system, therefore, once it is removed, you keep it and replace it prior to your visit to the dealership. Be sure not to let the muffler shop keep your DPF filter or exhaust tip.
Now, when you need to take it in for warranty, simply reload the factory tune, reinstall the DPF, and there is absolutely "no trace" of a programmer. Your Ford dealer will appreciate the fewer visits that you will make for warranty, because the truck works better with the Spartan Tune. I use the 250 tune and would recommend it highly. Cheers.