Which FASS to buy, what performance changes to expect?

[OggyOggy]

I've decided to get a FASS with our tax return. We have a 2012 Laramie Longhorn 6.7L HO, SRW, with an Edge Evolution tuner. There are a number of them with different flow rates...
1. Which FASS should I get? I tow a 5th wheel for about a month per year.
2. Draw tube or sump?
3. Do I need a mount?
4. Anything else I should consider?

Thanks!

 

[Cummins12V98]

My question is why would you want to? Earlier RAM/Cummins maybe but personally I would not waste my $$$.

I would advise filling in your visible profile for future questions.

 

[OggyOggy]

I've heard and read that it protects the fuel system better than stock and better fuel mileage. What about newer engines makes them not worthy of the addition?

 

[Kirwin]

The new in-tank fuel pump is capable of meeting any demand from a stock engine and has proven to be very reliable. Fuel filtering: more is better BUT, added system complexity with non factory components reduces reliability. The 2013 and later filtering system is excellent and can be retrofitted back to the 2010-1012 trucks via a Mopar kit. It has a Fleetgaurd 3 micron filter in the engine bay and an rough filter over the rear drive shaft near the tank both with water separation capability. Nothing against FASS systems, but I want simple and standard on something like that.

 

[OggyOggy]

The new in-tank fuel pump is capable of meeting any demand from a stock engine and has proven to be very reliable. Fuel filtering: more is better BUT, added system complexity with non factory components reduces reliability. The 2013 and later filtering system is excellent and can be retrofitted back to the 2010-1012 trucks via a Mopar kit. It has a Fleetgaurd 3 micron filter in the engine bay and an rough filter over the rear drive shaft near the tank both with water separation capability. Nothing against FASS systems, but I want simple and standard on something like that.

OK, sounds better all around and no potential draw straw issues. Would you have the kit part number for retrofit?

 

[Sleeper1]

This is what I used to protect my fuel system. The water separator and 3 micron Cat filtering out any contaminants going to my Nanonet fuel filter under the hood. I feel that it's more than enough protection. With the Nanonet filter being $60 plus, I simply change out my water separator and cat filter every 15K miles for $30.