hi mate nice ke , y did u go 2 1/2 inch on the exhaust 2 was max i went and my motor was pretty hot i.e big grind tighe cam, port polish ect , as for electric ignition go on to trademe.com plenty on there pretty cheap, get some nice period correct wheels then your on a win , like my ssr's witch r for sale or mungi mods has a lot of nice refurbished wheels for sale