This Bolt and Spacer kit is a high-quality replacement for the stretched or rounded manifold bolts in your 2003-2007 Ford 6.0 Powerstroke. Most aftermarket manifold bolts are shorter than the stock bolts, which after frequent heat cycles can cause them to stretch. This can eventually lead the exhaust manifolds to leaking, requiring you to re-torque and potential breaking.
The BD-Power exhaust manifold bolt and spacer kit features M8x1.25-40mm bolts that are class 10.9 and for greater thermal durability. The included 18mm spacers ensure the bolts stretch without fracturing or permanently yielding.