Holley 534-209 LS Hi-Flow EFI Fuel Rail

Product seems good two months orderd twice box was beat to hell but not damaged jegs or sumit would be a better option

Yes! direct bolt on fitment to the FAST LSXR intake. Fuel injectors will need the thicker O-ring. These flow well and have a nice black paint for my blacked out 6.0 Liter. My boosted lq4 is pushing 900hp

Purchased as a replacement for a less expensive fuel rail which I purchased from Amazon that leaked like a garden hose. This system fit and functioned from startup with no leaks. Only advise is to get a couple #8 ORB plugs if you don't have a full flow (front and rear crossover) hose routing.

Nice rails. Made them work on my TBSS intake with tall injectors but wasn't easy by any means. Lots of starting and seeing tons of leaks then making new brackets again. These rails are very nice tho. Come box perfect from holly and detailed instructions with multiple diagrams of how you can plum fuel to them.

Does not fit a stock LS3 trailblazer ss intake manifold with the factory short injectors. The brackets included allow for stock mid height, and tall injectors. I was disappointed when I realized that I either had to make my own brackets, or not use the fuel rails.