I haven't really paid too much attention to mine, and now I am noticing that they are pretty much black. Anyone got any cleaning advice?

Ivory Coupe 5AT
Z tube, K&N drop in.
Fujitsubo Y pipe...

 

What I do is spray it down with Stoner's Tarminator, then wipe off all of the road tar and junk with a diaper. Then I polish the tips with Mother's Mag & Aluminum polish. Ahhh nice clean and shiny. [img]/w3timages/icons/smile.gif[/img]

2K4 G35x/ etc...

 

I ended up using some #00 steel wool to get the crud around the lip off. It actually worked great, no scratches and the exhaust residue comes off easily. I followed it up with some metal polish and I'm pretty happy with me newly clean tips. I know... you're wincing at the idea of applying steel wool to anything on your car. It worked well for me. To each his own though.

Ivory Coupe 5AT
Z tube, K&N drop in.
Fujitsubo Y pipe...

 

I also use steel wool (#0000) on edge/inside exhaust tips, followed with Klasse AIO polish.

 

Someone on here led me to Mother's Mag and Aluminum Polish. It's a little jar and is magical stuff. I just cleaned my tips last Friday night and took it to our local meet. 2 people asked what I used to get them so clean, so it does make a difference.

<font color=blue>The above statements are only my take on the issue. If you disagree with anything I typed then you are 100% right!</font color=blue>

 

Mothers aluminum polish is great stuff...

2004 G35s 5AT DG/Graphite/Premium/Huper Optik Tint