Review on DNA Motoring OEM-ITM-004 Intake Manifold 615-188: Upgraded Performance for Ford F150/F250 F350 SD 5.4L V8 by Brian Hazzard

I took a chance buying this manifold and it paid off. Love the one piece design and built in seals. Simplified installation. After installing new ignition coils and this manifold, the truck woke up. I've also noticed a huge increase in fuel economy. The manifold comes with screws to secure the vacuum mounts as well as the coils in their respective locations. It is recommended to use the old manifold bolts, but I advise you to buy new ones and please, just in case. If you love all good things, tighten the screws as recommended. Helps with any type of leak.