Cheers chaps. Appreciated.
I've not done alot ! Just worked through some niggles so far, along with a routine service, brake overhaul and wheel re-finishing really. I'd love to buy an exhaust IF i was guaranteed i'd have no flat spot !
But: to be fair ive got a very slight creak / rattle / lump from front nearside suspension / CV joint / drop-link, and a slight exhaust blow (Hope its not manifold !) to sort, before i can direct my efforts to aftermarket stuff.
My mechanic hasn't looked at the suspension yet, but the exhaust only blows a tiny-tiny amount for a few mins until warm, and when he was trying to locate it - it had gone before he had a chance, and by then the manifold / system was too hot to touch and feel for leaks.