Two questions:<br>What are the default sparks used in the A4, bosch platinumns, 4 prongs.<br>A british mag once showed splitfire platinums gave 2-5 hp over stock plugs, while bosch platinums were just about 1 hp above stock (a small ford escort, uk type).<p>Anyone every change a regular auto (pre trip) to a tiptronic auto in a 12v a4. How hard and how much. What parts do you need and where do you get them. I am interested...and in the steering wheel mods if possible (dear aftermarket types, lots of us would pay for this....I think). I have wanted this since I ssw an article in the Mpower mag on the Alpina B4.<p>Jeff

you decide...don't expect any performance gains from plugs.<p>If you're running extra boost, then get colder plugs (a heat range or two).<p>Oh yeah...copper is a better conductor than platinum. Platinum just lasts longer. So if you're really looking for good sparks...copper would be your choice...cheaper, too. Just replace 'em every 20K or so & you're "golden".<p><p>steve

there is a puff piece on Bosch plugs, and damned if their latest wonder-plug doesn't have multiple electrodes just like ... well, we can't say it anymore.<br>