if i install a k&n filter and a z tube will mileage increase ????? or just change sound of car?????

 

90% is a change in the sound with a small increase in power (3-7 maybe). If your anything like me, you'll want to step on it all the time and you won't notice an increase in mileage at all. If you baby it, you may notice a slight increase (but that is debatable).

 

slight = .5 with normal driving, ex: under 5k

 

I got about 1 to 2 MPG with it compared to when my intake path was all OEM... but like others said, you will probably find yourself wanting to drive harder because the car sounds a lot cooler with the Z-Tube and an aftermarket air filter on there. I measured mine over a long period of time and the economy went up from about 22 MPG average to 23.7'ish fairly consistently.

 

If your concerned about mileage leave you G totally stock. That way you
won't be tempted to hear the cool sounds available after making the mods
most of us have. Not to mention your tires will last longer......haha

 

I Have Other Cars I Mod..i Want To Increase Mpg And Improve On Whats There Without Re-inventing The Wheel.......

 

damn that wagon of your has some tq, huh

my stang puts down 580+ to the wheels and only 448 ft lbs