More HP with other MAF
 

How much improvement would one expect by changing out the stock 80mm MAF to a C&L or Pro-M on a 2001 GT?

Just guessing here but I would say about 5RWHP. I installed one on my car in June and my car is running very close to it's best that I ran back in cooler January weather.

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00 GT, MAC Offroad H, Steeda Pulleys & Timing Adjuster, C&L 80mm, 4.30’s, Flows w/turndowns, UPR shifter, UPR Pro Series LCA’s, Lakewood 70/30’s & 50/50’s, 253.8 RWHP/292.8RWTQ
Best ET 12.91
Best MPH 105.49
M/M 100, 7085
2001 Mod Motor Shootout 2V NA Champion