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#359643 - 02/23/11 7:00 pm '76 T140 2 into 1 exhaust
Jersey Kev Offline
BritBike Forum member

Registered: 05/09/06
Posts: 115
Loc: new jersey, usa
I'm thinking about installing a 2 into 1 exhaust for my 1976 Bonneville T140, I found two options so far, one is from Brit tech New England (a B.B. sponsor). Another (less expensive) option is from Northern Eagle in Ontario. The Brit tech version promises 5 HP increase, but is only available in raw steel or ceramic coated (internal I'm thinking), while the Eagle set is chromed. Has anyone had experience with either one of these?
Thanks, Kev
_________________________
Jersey Kev

67 TR6P Saint
76 T140V Bonneville
95 Daytona 900
(removed non-brit from list)

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#359711 - 02/23/11 11:36 pm Re: '76 T140 2 into 1 exhaust [Re: Jersey Kev]
mblab Offline
BritBike Forum member

Registered: 01/24/06
Posts: 1570
Loc: Asheville, NC
JK
I've had a MAC such as NE sells on my 650 for years. It's held up well, chrome still looks decent and it tucks in to the frame nicely. Does it add 5 hp? Doubt it, but I like the way it looks. The baffle that came with it is horribly restrictive, but quiet.
The one picture I've seen of a bike with Jaye's pipe on it didn't look great to me. Looked like it didn't fit very well.
My 2c and worth every penny

Mike

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#359734 - 02/24/11 1:00 am Re: '76 T140 2 into 1 exhaust [Re: Jersey Kev]
shel Online   content
BritBike Forum member

Registered: 05/14/05
Posts: 2890
Loc: ohio
I have the MAC also and agree the baffle is very restrictive. Add hp? I think it robs hp. Pull the baffle out and see how much better it runs. I modified mine by cutting the end caps off the baffle, welding them to a piece of straight pipe, drilled a gazillion holes in the pipe and wrapped it in fiberglass muffler packing. It sounds good without being obnoxiously loud.

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