Chips ( what do they do, how much will it help and the best brand)

[dinomite]

the stock H-pipe has 4 CATS, not resonators, 4 CATS. if you want to change that, i would suggest a high-flow catted H-pipe, as it provides the back pressure needed to maintain torque on a stock, or lightely modded mustang.

As for a chip, it will do nothing for you on a stock mustang, and if you are gonna get one once you mod your car, get a custom burned one.

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90LX AOD Convertable: Lakewood control arms, FMS springs.
Best 1/4: 15.277@92.25 (2.27 60')
AIM: dinomite1, roadracestang
dinomite@softhome.net