recently bought this very clean calais so ill list the modifications and share it with you,
engine - 304i with 185kw at wheels(came with dyno sheet), 286 cam, roller rockers, remaps memcal, vt supercharged injectors, irridium sparks,
intake- star inlet manifold 90mm into 4inch piping with pod outside engine bay,
exhaust- pacemakers into 3" twin hole way to 3" dumpys
auto- 2800 stall, stage 2 shiftkit, street and strip valve body
diff- tight ass f** lsd unsure what its out of,
brakes- in dads shop getting vt upgrade and high temp gear.
suspension- kyb shocks and super low king springs(not low enough)
goes very well, ran it at heathcote on sunday and ran a 14.4, she is a heavy fatt lady and much go on a diet!! unsure of what weight reductions i can do to a calais without wrecking a good car, other than stripping the boot which ive already done.
Future mods im unsure as yet, but wont be happy untill im doing low 13's hehe
terrible pic's taken but it gives you and idea.