So I installed the pop charger and Z-tube...

[WESIDE]

Should have got the Stillen pop charger and then the chrome z-tube. Just my two cents.

[all G'd up]

My bad... I was thinking for a long time for a name, didn't realize someone would have one so close. I guess were both G'd up!

Beancooker: so the oil is for when you clean it? How often does it need to be cleaned?

Weside: Where u see the Stillen pop charger? Is there a diff?

[WESIDE]

Yup there is a differencehttp://www.stillen.com/product...202DR

[G_whizz]

Not often... but it will come with instructions on how and when to oil. You could also go to the Jim Wolf Technology website if you needed to know this info like right now. I actually hears it's a lil better for the filter when it gets slightly dirty anyways...weird.

BTW... there is no real huge difference in the 2 filters... but Nate (Sentient) likes to get really technical

[rmezz13]

which of the pop charger and injen has the best sound to you? and what is the performance difference if any?

The popcharger was nice, and better than stock, but it doesn't touch the sound and performance of the injen CAI. The CAI has a nice tone and around 3000-3500 rpm it whistles really loud until the exhaust drowns it out. I can hear it even with the windows up. It sounds so nasty!.... I'll have to record a drive by and let you hear it. I suppose i will do that sometime. Also have invidia N1 cat back so all around i love the sound of my little white beast (currently installing laughing gas... he he he). Then it will be ZEXy!!!