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Re: GM 85mm MAF Sensor kit
Of course headers help out but you have to weigh the cost which is around $800 or so for whatever performance benefit there is. Installation is no fun either. Hi -Flow CAT is highly recommended. Magnaflow Hi-Flow is one of the best deals going. You can get then on EBay for $55 including shipping. 2.25, 2.5 and 3.0 inlet/outlet size.
Yes, I have the Granatelli 85mm version but mine is cold air intake tuneable which is better than what ZZP has. Basically it is an LS1 MAF sensor. It is mounted before the throtttle body. The old MAF sensor on the throttle body gets canned.
BTW - Use of the ZZP 85mm MAF requires modified MAF/VAF tables programmed in the PCM.
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