H
Halltech
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I wanted to clarify our recommendations with respect to the MAF screen as it relates to the Halltech Intakes.
1) If you have a 2001 C5 and the TRIC (Tunnel Ram Induction Cold-air) System, leave the laminar honeycomb screen in the MAF. The honeycomb screen helps to "smooth" the airflow to the MAF sensor wires, resulting in better loop feedback to the PCM. When the screen is removed the air mass is improperly reported to the PCM, resulting in overtime work for the O2 sensors.
Some surging and possible codes can result from this. The performance difference is very slight be removing the screen because the screen version of the MAF flows more air than the Z06 needs. GM probably tweaked PCM on the 2002 to allow the screen removal.
2) If you have the T-1 Intake, no screen is necessary. No surging at all. Use the 2002 MAF for best results, but you can use the 2001 MAF without the screen. We stock the 2002 MAFs.
The Magic Box or MAF Translator should eliminate the lean condition on the 2001. The Halltech Magic Box is no longer being made, but we have a few in stock, but the T-1 elbow, converting the TRIC to a T-1 is a better option.
1) If you have a 2001 C5 and the TRIC (Tunnel Ram Induction Cold-air) System, leave the laminar honeycomb screen in the MAF. The honeycomb screen helps to "smooth" the airflow to the MAF sensor wires, resulting in better loop feedback to the PCM. When the screen is removed the air mass is improperly reported to the PCM, resulting in overtime work for the O2 sensors.
Some surging and possible codes can result from this. The performance difference is very slight be removing the screen because the screen version of the MAF flows more air than the Z06 needs. GM probably tweaked PCM on the 2002 to allow the screen removal.
2) If you have the T-1 Intake, no screen is necessary. No surging at all. Use the 2002 MAF for best results, but you can use the 2001 MAF without the screen. We stock the 2002 MAFs.
The Magic Box or MAF Translator should eliminate the lean condition on the 2001. The Halltech Magic Box is no longer being made, but we have a few in stock, but the T-1 elbow, converting the TRIC to a T-1 is a better option.