Hi! I have an Mk3 16v and i'd like to install a new camshaft set. The car will be used only on the Nordschleife and reliability is more important than power so i'd like to buy a set that doesn't stress too much the engine and that doesn't needs head's upgrades. The car has a 4-2-1 outlet racing manifold, no kat and sport rear exhaust and i think i'll modify the stock airbox instead of the dinamic intake that i have now. So, what about these? http://www.bildon.com/catalog/DetailsList.cfm?ID=109.418K http://www.bahnbrenner.com/vw_audi/products/457/16V_Sport_Camshaft_Set I need an adjustable timing gear too? Thank you and sorry for my english....