MAC Tri-y, any one have any experience?

[callahanoffroad]

I'm looking at different options for exhausts, and saw the mac tri-y 4-2-1, was just looking for some feedback from anyone who was running one.

[steve murdoch]

I am not familiar with their 4-2-1 system but Mac exhausts do not have the best reputation.
I had a chrome 4-1 system that had a vibrating baffle, a poor fit at the collection box and the chrome started to flake on the #1 header.

[callahanoffroad]

Thanks Steve, I had heard as much. I was just wondering as they are the only tri-y headers that I have been able to find for the 81+ 16 valves.

[trevor]

Thanks Steve, I had heard as much. I was just wondering as they are the only tri-y headers that I have been able to find for the 81+ 16 valves.

V&H pipes are much better and you shouldn't have any problems finding them for your bike. 1981 16 valve what?? 750? 1100?

http://www.motorcycle-superstore.com/9981/i/vance---hines-4-into-1-street-megaphone-exhaust-system

[callahanoffroad]

It's a 750E. I've found more than a handful of 4-1 exhausts. That's not the problem. I was just very specifically looking for a 4-2-1. The reason being it links the 1&4 cylinders and 2&3 cylinders, which tends to produce some nice power throughout the rpm range vs just at the top end. Unless the gs has a non-traditional firing order that I don't know about.

[huntb]

4-2-1 exhaust is going to give you better performance over a 4-1 exhaust as the scavenging is better

[Guest]

If you went true performance gain Mac is not the answer. One of my bikes has a 4-2-1 by Micron nice pipe. Mac is only a cheap alternative to stock IMO.

[callahanoffroad]

4-2-1 exhaust is going to give you better performance over a 4-1 exhaust as the scavenging is better

Scavenging, that's the word I was looking for. 530 am isn't the best time for tech talk I guess hahaha. So does anyone have any recommendations besides Micron? Mac was like I have stated the only 4-2-1 I had been able to find. Am I better off just having one custom fabricated?

[JTGS850GL]

I'd just pick up the Vance & Hines. Any advantages of a 4-2-1 on the low end would be VERY minimal on a basically stock engine.

[callahanoffroad]

Thanks for the input guys. :-)