Which is better for JWT Pop Charger?

 

I have an extra z-tube if you interested...

 

Z-Tubes just changes the sound of our VQ motors, there's zero gains except a cool sound. The pop up charger is not the best choice even living in the bay area where it does on occasion get hot. Metal tubing will cause heat soak making you lose major HP. Instead get the complete Stillen CAI/Z-Tube kit which includes a large K&N cone filter. They're made of plastic composite so your motor will always breathe cool air....Gary