I have an extra 2001 XJR that I am going to make into a project car. If you had a wish list of things you would do to make it into a weekend street toy. It is pretty fast now but I just know that it can be improved. What would you do to it?

 

is the car stock? intake/ change s.c pully/ cats. / back exhaust/ ecu reprogram.

 

Yes, Bone stock

 

There are many possibilities already, it all depends a bit on how much you want to spend on performance mods, then its easier to recommend options.

 

https://www.jaguarforums.com/forum/j...project-52518/

 

I would just like to bolt on stuff. Not go into the engine. Money is really not an issue.

 

Still plenty options left.

You can get bolt-on’s to get into the 50 rwhp range (pulleys/better cooling/sports catalyst/tune/possibly exhaust/ported sc).

Or even in the 150 rwhp range (and higher, with twin-screws of course).

Then there are suspension changes possible (if you whish a stiffer setup, so different springs, and revalve of cats shocks), many lsd options (a nice to have with more power, even without to be honest), and now also gearbox enhancements (blue tops, or complete rebuilds with stronger/adjusted parts for better shifting, and hopefully soon tuned TCM's).