You do not need half of the crap we buy, however it is a good idea. Lot of voltage and a upgraded FPDM is a great idea. If not thermal shut down and burnt up pumps are no big deal
If you are running a pair of big returnless fuel pumps (i.e. Lincoln Aviator, Ford Focus, or Ford GT) and/or running '03/'04 SVT Cobra dual pumps with a pump voltage booster in your high-horsepower Mustang you NEED to have your FPDM modified. This modification allows the Ford Mustang driver (99-04) to sink substantially more current (up to 25Amps) without overheating. What happens when the stock driver overheats? It goes into thermal limiting and cuts ALL fuel supply to your engine until the driver temperature drops below a safe level. As I'm sure you're aware, the loss of fuel pressure with your engine at full load can often times be catastrophic!
This modification will NOT require a retune of your vehicle. It will not reduce reliability of the driver or of the system. In fact, the driver will run much cooler than in the stock configuration which will prolong its life even when used with high-flow, high-current dual pumps.
WHEN IS THE FPDM NOT NEEDED?
This modification is NOT necessary if you are running stock '03/'04 Cobra dual pumps without a pump voltage booster or a single Aviator, Focus, or Ford GT pump without a pump voltage booster. It will not hurt to do this modification with the above mentioned systems but it is not necessary as those pump setups all draw less than 18Amps at full load.
NOTE-We have these units in stock and ready to ship!
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