Upgraded Fuel FPR Spring Kit 99-03 7.3L
Upgrade your weak original FPR spring in your 1999-2003 7.3L Powerstroke. Choose from 3 springs depending on what pressure you want to run, silver ~55psi, ~gold 62psi, black ~70psi. Kit includes the mounting oring, as well as the fuel sleeve on the return tube. All parts 100% Made in the USA.
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Spring Upgrade
This spring definitely mad a difference along with other fuel upgrades better throttle response and pickup and go thanks riffraff I plan on ordering more products particularly the conversion kit from early 99 to late 99
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Amazing!!
I cant believe the results!! So much power difference. Cool part is you get 3 springs in this pack. Use the one you want and sell the other 2 to your 7.3 friends & family. These springs will not disappoint!!
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Great products
This is one of many parts I have ordered from Riffraff. All there parts are way above the competition. Instruction manuals are spot on.
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Nice Kit! Easy Install
Purchased this kit to replace OEM spring, Used Black spring to achieve a little higher fuel rate. Seems to smooth out the injectors, for a smoother ride. Nice kit.
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Great product
Put the 70 psi spring in and was very happy with the results keep my fuel psi above 60 when full throttle with stage 2 injectors.
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Quality product
Went with the middle of the road spring. Great throttle response. Sounds smoother at idle.
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Quailty
Great part fantastic customer service. I will be continuing to reccomend yor company!
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Great product
Works as it should, checked every spring fuel psi, right on the money
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More power smoother running
I have just installed the gold spring not long after the oil crossover pipe it has made it run slightly smoother again and quieter again on the hwy. Slightly more power and has smoothed the engine out right through the rev range . Even noticed less cackle another awesome product from riffraff.
