I have a 04 GT which the only mod i have is an SLP loudmouth cat-back, and i was looking into buyign an 80mm MAF, but would i have to calibrate the ecu for it or can i just swap it on?? i also have a K&N straight through design intake, but have not installed it yet..

-Mike =)

 

You really need to have the car dyno tuned with a MAF replacement. It is really a pointless mod unless you are putting down so much power that the stock MAF is maxed out. (350 rwhp or even more)

 

I just ran across an old article in MMFF and they installed an 85 mm C&L kit on a box stock 02 GT.This returned 9 hp and 9 ft lbs of torque at the rear wheels. BUT this kit comes with a K&N filter and it makes me wonder how much of the increase is the meter and how much is the filter?

 

yeah i have actually seen that same article, im pretty sure. I am actually waiting to install my K&N intake, but i have heard from many peopel that getting the larger MAF not to 80 but maybe to 75mm to go along with a C&L intake plenum and 75 mm throttle body..but the real question is if i have to recalibrate my ecu for the maf change?

-Mike

 

Dont bother with and aftermarket MAF untill you reach about 325 RWHP. they cause more problems than gains on near stock vehicles. I would go with Headers, Gears, X-Pipe or an Intake Plenum first.

 

I'm wondering if the HP increase comes from the parts or the change in the fuel air ratio???Ford would give a safe A/F ratio to the box to keep from making holes in pistons.The ECU will compensate for a wide range of add on parts,so don't worry about that.

 

Yeah! What he said. Your stock Maf is all you need right now.