According to Johnson Autoworks, the most common upgrades to a Split that truly enhance the driving experience are to ditch the reduction boxes and go IRS. You’re looking at £3,500-£4,000 for that, fitted. If that sounds a lot, you can buy an IRS kit from Creative Engineering for £600 and save about £1,500 in labour charges, but then you have to track down the correct gearbox, rear brakes etc. and these parts aren’t as cheap or readily available as they used to be. Plus it’s a pretty involved job.
The next best thing is a steering rack conversion. That’s £1,000 for parts, plus a day’s labour if you pay a garage to fit it.
And, of course, there’s lowering. An adjustable beam is £500-£600, dropped spindles are £400 for a…