Exactly! Most people who are looking for crossover parts DON'T know what really works and what doesn't - nor do they have the slightest clue what it takes to qualify a part. They certainly don't have the time, equipment, or expertise to do it on their own. What may work on a single car in a single location given a single driving pattern won't necessarily work under different circumstances. There is no guarantee that the part will work anywhere else. Take spark plugs and wires. Are they the correct impedance? Are they the correct temperature range? Are they gapped correctly? Just because a set of wires will reach from the cap to the plugs doesn't mean they are the correct parts. Just look at the issues that have been reported on this list regarding replacement coils. What DMC and other vendors have is exposure to a large population of cars. They can determine from their experience over that population what works and what doesn't. They are also better equipped to quantitatively determine if a part is better or not. -- Mike -------------- Original message from "endotex23" : -------------- > > > bite the bullet and buy the right parts for your car. you will be > glad you did in the end.< > > If you're advocating buying such parts only from a vendor that's > nonsense. All you're doing when you succumb to this is admitting you > don't have the expertise to know the difference. Do you really think > DMC or any other vendor has a factory out back making spark plugs, > wires, coils, or most other components? > > All you're doing is saving time and that's certainly your choice but > the plain truth is the time required to determine the suitability of > a part is inversly proportional to your knowledge of the part or > system in question. > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/