I’m in BC Canada and have a 2008 XK Coupe 4.2 with 20,000km (12,500 miles)
I’ve had the car since new and it’s been babied every day of its life.
I’d like some European growl from the exhaust but I have no idea where to turn in terms of aftermarket supply.
looking for suggestions
thanks in advance

 

Larini , elite rr, spires , quicksilver

Google and you'll come across some video clips for xk

 

You can also replace the backbox with one from a 4.2 XKR (you’ll also need to replace the lower bumper valence to allow the quad tips to fit). Without the vacuum system on your XK, the control valves will always be open (like pulling the fuse on an XKR).
You’ll have a nice rumble, and stay OEM.
I’ve read that this setup on the XK sounds better than an unmodified XKR, as the XK only has a single center resonator instead of two, and has a higher compression ratio.
I like it on my ‘07 XK.