Did the install on Saturday - along with the z-tube and k&n drop in. It took us (me and brother) about 2 hours at a pretty slow pace - even stopped to eat while doing it. 2 people makes it SO much easier, especially when lining up the spacer and new gasket. And of course tightening evertything back down.

I got to open up a little that morning. The z-tube does make the louder growl noise as everyone said. Since my car only has 1400 miles on it, its was hard to tell how big of a difference at first. Now here's the funny part - on Sunday, in the nasty rainy weather, I had to gun it to get past some idiots - right when the car hit 4000 - it was like a slingshot! It opened up and took off. So that upper low to midrange is improved. I'm not smart enough to do some "butt dyno" but there is a difference. And I will most likely do the ECU reset later this week after driving her a little harder this week to see if that really helps.

Here is a question for anyone else that has done the install - I've had to retighten the 6 center bolts a couple times after driving it. Has anyone else had that issue? Seems like it's ok now. Every time I got done driving the car this weekend, I opened the hood and checked for any leaks, and it looks perfect. I'll post more when I can give more driving experience.

Thanks again Tony for all your help.

 

Is your 2005 a 6MT?