It's just a 26,000 micro farad capacitor, you can get one from an electronics distributor, it you don't care about it color matching.

Keep the leads from the filter to the box as short as possible, and as black64 mentioned make sure your grounds are solid.

The last one I used helped, but didn't totally eliminate ignition noise (but the PO had some creative wiring ideas).


remember when you said honey, some day that car is gonna look so good in front of our house