Tuning an '89 Sovereign!

Tuning an '89 Sovereign!

Author
Discussion

glenno

Original Poster:

35 posts

248 months

Sunday 16th October 2005
quotequote all
Does anyone know of a company dealing in tuning mods for the xj40? Exhausts, etc. Improve breathing and response and perhaps economy? Do they benefit from a professional tune-up? Or should I just save up for an XJR!!

4WD

2,289 posts

238 months

Sunday 16th October 2005
quotequote all
I'm sure your sovereign will outlast an xjr. Drop a lovely V12 in there. A manifold, exhaust and ecu change will see it in the high 300's. Plenty for wafting.