Review on 🔧 C-2290 Coil Spring Conversion Kit by Arnott by Matthew Nielsen

5 star rating vs factory kit after about 8 years. I have installed dozens of these conversion kits on a 2004-2008 Jaguar XJ. 2007 and 2008 models require an Arnott kit with a custom ECU in place of the factory suspension ECU for this conversion. This is an additional control unit that does not signal a malfunction of the CATS system or the suspension after the conversion. Each time we've done this conversion rather than repairing a factory aircraft, everyone has been very happy with the results. I'd settle for the comfort suspension just because it handles well enough to pass for luxury and sportiness when you need it.