I'm working on the engine for the 93 in my sig. I put dual frost plug heaters in because I wanted a spare when one takes a dump or to heat engine in a hurry. The wimpy oe starter bracket would not clear the plug in on the heater and was way too light to trim enough out for clearance. I fabed a new one out of 1x1x1/4 angle iron with clearance for the heater cord. Pretty simple fix and upgrade. I've had 2 of the oe brackets break. Luckily I cought them before it snapped the block off.