Alright boys and girls..

I have a 2004 Coupe and I'm doing my first tune up. I'm not enthused about paying the $771 that it costs me for parts (even at my dealer cost). Any suggestions on which aftermarket brand is the best to use for the plugs and wires? I also heard iridium plugs were the best...

Also, I'm thinking about putting an aftermarket exhaust on the XF... suggestions on what sounds the best? I've had the car for a while but haven't dumped much money into it. I'd like to make some modifications before spring for some added performance. So any suggestions you have for that as well will help!


Thanks in advance