Stock now feels closer to my 45hp tune. Little quieter at idle.

great kit with selection of springs for your 7.3. Comes with new o-ring and gasket to make sure you can reseal your fuel regulator properly.

If you cant get the cross over kit get this. well worth the cost

Great product getting way better mpgs

Nice little kit, included all the orings needed for install. Took my 2001 7.3 fuel pressure from 51 at idle and 40 full throttle back up to 61psi idle and 59 wide open. Other kits I was considering only included a single spring and somehow thought it was worth over $25! Ridiculous. Once again riffraff is the best.

I bought this thinking I’d use the middle gold spring and reduce the pressure drop between idle and WOT. Once installed I was seeing higher pressure than I was comfortable with at no load (about 68) and still had a pressure drop to around 54 at WOT.
I ended up using the “stock” silver spring and it is running about 63psi no load now compared to my original of 58psi.
Bottom line, this is another quality product from riffraff but it’s not needed. You should have a pressure gauge to confirm since my actual ended up being a bit higher than expected by the spring chart. If I had it to do over again I would get the FPR rebuild kit instead.

Working very well

Easy install, no leaks. Truck fired right up and runs great.

Night and day difference, way better throttle response. Highly recommend doing this if you have a 7.3 powerstroke