Easy To Use Don't Pay Big $ To The Dealer When You Can Do This Yourself For A Fraction Of The Cost! With more and more broken exhaust bolts reported on the water-cooled engines, the headache of repairing a broken bolt is becoming epidemic. Tasks ranging from a simple exhaust system update through an engine removal, are consistently plagued by snapped, rusted, and broken exhaust manifold bolts. Rarely can an accurate removal of the broken bolt be performed with the engine in the car, and even after removal, the task is time consuming and if not done carefully can lead to a damaged head or faulty repair. The answer to these problems is a kit that easily, accurately, and flexibly allows you to drill out the broken bolts, saving time and headaches. A CNC milled plate indexes precisely off the broken bolts and/or bolt holes. Using this uniquely designed Thumb Screws, the plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the Thumb Screw). With the included pilot drills and drill guides, the faulty bolt can be drilled out, producing a perfectly perpendicular and centered hole that if necessary can be chased with an included M8x1.25 tap. Kit includes anodized aluminum fixture, drill bits, tap with extension, drill jigs/guides, Thumb Screws, and hardware in a sturdy storage case. Learn More