MustangWorks.com : Ford Forums - View Single Post - To have or not to have....that is the question

cyberstang5.0 · 12-10-2001, 01:55 PM

I currently have a 1 5/8" unequl headers, 2 1/2" h-pipe with hi-flow cats, and 3 chamber mufflers with 2 1/2" chrome tips all from MAC. The quesiton is how much of a HP gain is the off-road H-pipe then the H-pipe with the Hi-flow cats? How much louder will it make my car? Will I still pass emission tests?

My friend had (before he moved) the same exhaust system as me except for he had the off-road H-pipe. His car sounded quieter for some reason

He also had emissions hook ups and he could get away with it. If need be, I will swap the H-pipe when the time comes to get it inspected and then swap it back to the off road. I like loud cars and my car is LOUD but I live in a quiet neighborhood so I have to keep it undercontrol.

12-10-2001, 01:55 PM	#1
cyberstang5.0 347ci of HORSE POWER!!! Join Date: Jul 2001 Location: Houston, TX Posts: 1,416	To have or not to have....that is the question I currently have a 1 5/8" unequl headers, 2 1/2" h-pipe with hi-flow cats, and 3 chamber mufflers with 2 1/2" chrome tips all from MAC. The quesiton is how much of a HP gain is the off-road H-pipe then the H-pipe with the Hi-flow cats? How much louder will it make my car? Will I still pass emission tests? My friend had (before he moved) the same exhaust system as me except for he had the off-road H-pipe. His car sounded quieter for some reason He also had emissions hook ups and he could get away with it. If need be, I will swap the H-pipe when the time comes to get it inspected and then swap it back to the off road. I like loud cars and my car is LOUD but I live in a quiet neighborhood so I have to keep it undercontrol.