I know that this has been talked about a lot, but as far as I saw it was all with the older models. I have a 06 x sedan and after installing the z-tube and the pop charger I feel like I lost power. The car is laging in the low rpms. There is a lot of sound increase but not power. I am pretty sure that the 06 models have different engine and tune up. Anybody else have the same issue or have comments?

 

06 5ATs are the same as 05s (and basically all earlier years). As far as the popcharger goes, a lot of people spanning all years complain of the same problem. I have the Stillen CAI and I feel like I lost low end also. I recently came into possession of a K&N panel filter. I am going to drop that in today with the stock airbox and see how it compares.

 

you wont be disappointed with the K&N and Z-tube combo, trust me

 

+1, I just installed the combo recently and the sound is amazing. I actually lost mpg/tank though. Not because of the mod, but because I keep flooring it to hear the exhaust scream on WOT. Jimmy warned me and I didn't listen

 

+2

 

Hey, I just have the Ztube and powerduct off and it sounds much better above 3500, and on cooler days than hot I feel increased throttle response

 

so i got a 06 sedan, i was thinking of putting injen cai. Will it be just better to put k&n and z tube combo?
I am going for sound more tho...

 

Ok, I am going with the K&N instead. I just put my Pop Charger up on EBAY if anyone interested.

 

just installed the ztube w/ k&n drop in filter today. took about 25 mins. i also am losing mpg. i looove that sound. its not too loud yet noticable. sounds clean.

 

Yea your MPG will going down... from all the gas giving to hear that sweet sound!