Rexde1

XLR8 C4

I have it currently on my 03Z and have had zero issues. Its def larger then the factory air bridge allowing more CFM to the throttle body.

Gordy M

The Throttle Body on the C5 is about 750 cfm and the C5Z is closer to 800 cfm. The standard C5 air bridge and filter flows more than enough air for a stock C5 or a C5Z, the air cleaner on the Z was enlarged to more than compensate for the additional 60 hp and still have plenty to spare. By increasing the size of the air bridge to flow more air you actually are slowing down its velocity after the MAF has sent the information to the PCM to make fueling/temperature/advance/etc adjustments. Unless your fuel trims were more than +5, that means you are running rich, you are in effect slowing down your engine efficiency. However, the intake will sound louder and more than likely you will associate that with better seat of the pants improvements.

XLR8 C4

How are you slowing down the air speed AFTER the MAF when the MAF is located directly in front of the Throttle body?

Dbl_D718

Because the MAF is actually directly after the filter, and the bridge is between the MAF and the throttle body. Fortunately it's a mass airflow sensor and not a speed airflow sensor.


​​​​​​Nevertheless, the Halltech is a high quality intake and arguably one of the best available, but it's pricey. I would recommend waiting for a used one to pop in the For Sale forum.