View Full Version : MAC H-pipes, any input guys?

10-17-2004, 07:40 PM
I am really leaning towards a MAC H-pipe with cats. Just wondered if anybody could reccomend it or not. I haven't had any experience with MAC products before but the soundclips that I have heard sound pretty good (I will be using a Bassani cat-back exhaust). Could somebody tell me what the difference is between the MAC H-pipe with Hi-Flow cats and the MAC ProChamber with cats?


10-18-2004, 01:16 AM
Don't go with an H-pipe with the Borla. H-Pipes and straight through mufflers don't sound good. You will want an X-pipe (Dr. Gas) with the Borla, which is extremely overpriced in my opinion (Borla). Sure it looks good, but I'm not driving a show car.

I've got the MAC O/R H with the flowmaster american thunder cat-back. It's nasty loud, and has a very deep sound. You might lose 1 or 2 horsepower with the H-pipe over an X (it's an ongoing debate), but you'll sound the way a mustang should sound IMO. Just going from 2 1/4 to 2 1/2 inch with the H pipe should make yours sound a good bit deeper. The cats will restrict the sound a bit, but it'll probably sound at least 50% better than it does with the stock stuff. Remember, exhaust is subjective. Everyone has their likes and dislikes, so go with something that fits you. I like it loud and deep, while some guys like it raspy and more exotic sounding. Get something that you can live with.

Hope this helps! :thumbsup: :thumbsup: :thumbsup:


10-18-2004, 06:50 AM
with an x pipe you will lose some of the low end but gain some in the more top end power.a H pipe is vis versa.ive only heard this so it might not be true.

10-18-2004, 10:05 AM
Thanks Craig. I have always loved the way Flowmasters sound especially with an O/R H-pipe. I do dig that deep throaty sound and that is what I am going for. If it wasn't such a headache for me, I would probably go with the O/R pipe but having to worry about it not passing emissions is just a pain. Wouldn't be so bad if I had access to a car lift because then I could just reinstall the factory exhaust whenever I needed to. Ahh, decisions decisions.