hey mate
Recently had my 197 and like others, felt that the tapered (diffuser profiled) standard exhausts dont show the back end off as it could/should - so I bought these :-
http://www.ebay.co.uk/itm/Exhaust-trim-tips-PAIR-Aluminium-Universal-fit-Rolled-Edge-1st-Class-Freepost-/190863005940?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2c705258f4 or
http://sealsrealdeals.com/exhaust-trim-pair/ (same item thats their website)
which are......from what I gather - larger than the OEM RS tips - I have them tucked in just enough to ward off any "wheel barrow" comments and having a larger O/D than the OEM parts, beef it up slightly IMHO - and coming from a Mk4 R32 and Audi RS4 (rolled tips at outer rear of both)- I kind of missed the rolled chromed tips on the rear of the 197 - I love the looks now.... If I get bored they can always go LOL. The new items also have a slight taper, so go well with the angles of the rear end.
I had to deburr the inner surfaces of the ebay items slightly to get a nice fit over the existing tailpipe (just enough to get a leading edge when fitting) and also canned the brackets they sent and used some tasty jubilee clips (sprayed mat black so they don't show up when looking underneath) - also a LOT easier to access the jubilee clips through the gap between the diffuser and tips.
Im chuffed anyway - definately the beefier look I was after - measurements are on the ebay link bud.
recent pics (with camera phone) :biggrin: