Recall on '99 GT Pro-M MAF

kg2hk · 11-16-1999, 09:57 AM

There is a recall on the Pro-M MAF for the 1999 Mustang. Apparently, the first lot of these units were sent to retailers with calibration for a 98 GT. You can return your unit for a free recalibration to Pro-Flow - Contact Pro-Flow @248.399.9223 or on the web: http://www.pro-flow.com/recall.htm for more info.

The recalibration makes a huge difference!
Good luck!

------------------
99 Laser Red GT
Mods: 70mm TB, Level 10 Chip, FMS 3.73's, Sean Hyland Speedo Recalibration kit, Pro 5.0 Shifter, & Pro-M 77mm MAF.
DynoJet: 242HP/286 Lb/ft
Best 1/4: 13.839@99.1MPH on radials.

EXAM1999 · 11-16-1999, 01:18 PM

This is true. I sent mine back a few weeks ago and I just got it back a few days ago and it works fine. My meter actually came calibrated for a 96GT which was way too lean.

------------------
EXAM1999
99 Mustang GT
4R70W, Borla Cat-Back, Pro-M77, PI 2800 stall Lock up T/C, cooler & Transgo Shift kit, Synthetics in rear & Type F in trans.
Bassani X-Pipe <--Done
Vortech V2 SQ is next

john edwards · 11-16-1999, 10:01 PM

I just sent mine back yesterday. My car went 13.71 @ 100.69 on the factory goodyears before recalibration. Do you know how much it helped?

EXAM1999 · 11-17-1999, 08:11 AM

I honestly couldn't tell you from a performance standpoint, but from a driveability standpoint, it's much better. No more pinging and no more stalling after 100+ runs.

------------------
EXAM1999
99 Mustang GT
4R70W, Borla Cat-Back, Pro-M77, PI 2800 stall Lock up T/C, cooler & Transgo Shift kit, Synthetics in rear & Type F in trans.
Bassani X-Pipe <--Done
Vortech V2 SQ is next

kg2hk · 11-17-1999, 09:01 AM

On the dyno, the Pro-M unit lost 2 HP and 7lb/ft torque over the stock unit. (Before recalibration) I just got mine back 11/15 and what a big difference! It's enough to feel, especially on the high end - say 5-10 RW HP?

I ran 13.839 @99.1 MPH on radials without the unit and I'm going to make a few passes at the track this saturday. I will let you know the results.

I won't be able to supply a dyno test for the MAF - I just don't have the money to put the car on a dyno again this year. The next time the car goes on the Dyno, it will be next year after the exhaust gets hung.

If anyone has a before and after dyno test for the MAF let me know!

------------------
99 Laser Red GT
Mods: 70mm TB, Level 10 Chip, FMS 3.73's, Sean Hyland Speedo Recalibration kit, Pro 5.0 Shifter, & Pro-M 77mm MAF.
DynoJet: 242HP/286 Lb/ft
Best 1/4: 13.839@99.1MPH on radials.

[This message has been edited by kg2hk (edited 11-17-1999).]

RedGTvert · 11-18-1999, 11:23 PM

Exam . . .Saw note about Vortech in Y2K. Unless there is a miracle worker out there and I haven't found him yet, Pro-M and Vortec creates real lean conditions. Had to pull mine off and send back for refund.

Superchips, Steeda and several others cannot seem to get detonation problems straightened out.

Seem the ECM in 99's are way too smart, find their way back home in two weeks or less even with chip.

Hey with all the HP you'll be gettinf whos needs that Pro-M anyways!

EXAM1999 · 11-19-1999, 07:54 AM

I was honestly thinking of going with the Speedlab blower used on the Saleen S281 because Saleen actually re-burns the board which is much better, but because of my converter, I would be launching the car at about 3,000 rpms and 410 ft lbs. It would be quite difficult to get it off the line. The plus is there are much less tuning problems that way and it is a much cleaner fit with no hoses and tubes. I thought the Vortech kit comes with a Pro-M77 and 30 lb injectors. I will have to do more research.

------------------
EXAM1999
99 Mustang GT
4R70W, Borla Cat-Back, Pro-M77, PI 2800 stall Lock up T/C, cooler & Transgo Shift kit, Synthetics in rear & Type F in trans.
Bassani X-Pipe <--Done
Vortech V2 SQ is next

11-16-1999, 09:57 AM	#1
kg2hk Registered Member Join Date: Oct 1999 Location: Stony Point. NY Posts: 18	Recall on '99 GT Pro-M MAF There is a recall on the Pro-M MAF for the 1999 Mustang. Apparently, the first lot of these units were sent to retailers with calibration for a 98 GT. You can return your unit for a free recalibration to Pro-Flow - Contact Pro-Flow @248.399.9223 or on the web: http://www.pro-flow.com/recall.htm for more info. The recalibration makes a huge difference! Good luck! ------------------ 99 Laser Red GT Mods: 70mm TB, Level 10 Chip, FMS 3.73's, Sean Hyland Speedo Recalibration kit, Pro 5.0 Shifter, & Pro-M 77mm MAF. DynoJet: 242HP/286 Lb/ft Best 1/4: 13.839@99.1MPH on radials.

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11-16-1999, 01:18 PM	#2
EXAM1999 Registered Member Join Date: Mar 1999 Location: Oakdale, NY, US Posts: 50	This is true. I sent mine back a few weeks ago and I just got it back a few days ago and it works fine. My meter actually came calibrated for a 96GT which was way too lean. ------------------ EXAM1999 99 Mustang GT 4R70W, Borla Cat-Back, Pro-M77, PI 2800 stall Lock up T/C, cooler & Transgo Shift kit, Synthetics in rear & Type F in trans. Bassani X-Pipe <--Done Vortech V2 SQ is next

11-16-1999, 10:01 PM	#3
john edwards Registered Member Join Date: Sep 1998 Location: Jonesborough, TN USA Posts: 167	I just sent mine back yesterday. My car went 13.71 @ 100.69 on the factory goodyears before recalibration. Do you know how much it helped?

11-17-1999, 08:11 AM	#4
EXAM1999 Registered Member Join Date: Mar 1999 Location: Oakdale, NY, US Posts: 50	I honestly couldn't tell you from a performance standpoint, but from a driveability standpoint, it's much better. No more pinging and no more stalling after 100+ runs. ------------------ EXAM1999 99 Mustang GT 4R70W, Borla Cat-Back, Pro-M77, PI 2800 stall Lock up T/C, cooler & Transgo Shift kit, Synthetics in rear & Type F in trans. Bassani X-Pipe <--Done Vortech V2 SQ is next

11-17-1999, 09:01 AM	#5
kg2hk Registered Member Join Date: Oct 1999 Location: Stony Point. NY Posts: 18	On the dyno, the Pro-M unit lost 2 HP and 7lb/ft torque over the stock unit. (Before recalibration) I just got mine back 11/15 and what a big difference! It's enough to feel, especially on the high end - say 5-10 RW HP? I ran 13.839 @99.1 MPH on radials without the unit and I'm going to make a few passes at the track this saturday. I will let you know the results. I won't be able to supply a dyno test for the MAF - I just don't have the money to put the car on a dyno again this year. The next time the car goes on the Dyno, it will be next year after the exhaust gets hung. If anyone has a before and after dyno test for the MAF let me know! ------------------ 99 Laser Red GT Mods: 70mm TB, Level 10 Chip, FMS 3.73's, Sean Hyland Speedo Recalibration kit, Pro 5.0 Shifter, & Pro-M 77mm MAF. DynoJet: 242HP/286 Lb/ft Best 1/4: 13.839@99.1MPH on radials. [This message has been edited by kg2hk (edited 11-17-1999).]

11-18-1999, 11:23 PM	#6
RedGTvert Registered Member Join Date: Nov 1999 Location: Newtown, PA, USA Posts: 34	Exam . . .Saw note about Vortech in Y2K. Unless there is a miracle worker out there and I haven't found him yet, Pro-M and Vortec creates real lean conditions. Had to pull mine off and send back for refund. Superchips, Steeda and several others cannot seem to get detonation problems straightened out. Seem the ECM in 99's are way too smart, find their way back home in two weeks or less even with chip. Hey with all the HP you'll be gettinf whos needs that Pro-M anyways!

11-19-1999, 07:54 AM	#7
EXAM1999 Registered Member Join Date: Mar 1999 Location: Oakdale, NY, US Posts: 50	I was honestly thinking of going with the Speedlab blower used on the Saleen S281 because Saleen actually re-burns the board which is much better, but because of my converter, I would be launching the car at about 3,000 rpms and 410 ft lbs. It would be quite difficult to get it off the line. The plus is there are much less tuning problems that way and it is a much cleaner fit with no hoses and tubes. I thought the Vortech kit comes with a Pro-M77 and 30 lb injectors. I will have to do more research. ------------------ EXAM1999 99 Mustang GT 4R70W, Borla Cat-Back, Pro-M77, PI 2800 stall Lock up T/C, cooler & Transgo Shift kit, Synthetics in rear & Type F in trans. Bassani X-Pipe <--Done Vortech V2 SQ is next