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GuzziTech.com Forum • GT-Rx Breva/Norge/Sport mufflers

GT-Rx Breva/Norge/Sport mufflers

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GT-Rx Breva/Norge/Sport mufflers

Postby GT-Rx » Sun Nov 22, 2009 9:30 pm

Below is four versions of mufflers I am now taking orders on, in Stainless and Carbon Fiber.
Both come with a db-killer. With the db-killer installed, the sound is slightly above stock muffler volume. Removed it gives a nice, deep Guzzi sound.
Price for the first shown below (stainless) will be $549.95 and the carbon version will be $689.95 shipped within the lower 48 U.S. Both will clear the factory bags using the OEM bracket, or to run in the higher position, just remove the OEM bracket and rotate up as with the stock muffler, shown below.
A high-mount version (shown at bottom) for the Sport 1200 (run *without bags only*) will be available to order only for $629.95 stainless/$769.95 carbon. Contact me direct for any details; Todd at GuzziTech.com

--ORDER INFO HERE--

Our full stainless reverse-cone muffled meg is available for $579.95, contact me direct for more info or to order.

Stainless:
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Shown in high position when side bags are *not* used:
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Carbon fiber:

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Norge (shown w/o carbon strap to bracket):

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High mount location:
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Re: GT-Rx Norge/Sport muffler previews

Postby Martin » Mon Nov 23, 2009 11:19 am

With the db-killer installed, the sound is slightly above stock muffler volume. Removed it gives a nice, deep Guzzi sound.
The Norge stock muffler or Sport? That's a significant difference. ;)
Nice looking exhausts.
The full stainless meg is different from the one shown here?
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Re: GT-Rx Norge/Sport muffler previews

Postby GT-Rx » Mon Nov 23, 2009 11:23 am

Martin wrote:The Norge stock muffler or Sport? That's a significant difference. ;)
Nice looking exhausts. The full stainless meg is different from the one shown here?

Sound would be slightly more to the Sport 12, and noticeably more-so then the Norge can w/db-killer installed.
Thanks, and yes, my meg will be similar shape to the one shown below that we build for the Griso 11/8V. Even with our db-killer installed on the system below, it's still sounds like a '60s muscle-car w/duals.

Click for more info for the Griso GT-Rx systems:
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Re: GT-Rx Norge/Sport muffler previews

Postby Zapa » Mon Nov 23, 2009 3:34 pm

Those look very nice!

I think a good sound recording is in order ;)

BTW, when you say shipping included, where to exactly? I have to ponder if I buy from the US or go to an Euro distributor.
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Re: GT-Rx Norge/Sport exhaust previews

Postby GT-Rx » Mon Nov 23, 2009 4:01 pm

Zapa wrote:Those look very nice! I think a good sound recording is in order ;)
BTW, when you say shipping included, where to exactly? I have to ponder if I buy from the US or go to an Euro distributor.

Thanks Zapa, sound recordings are always "iffy" IMO, as you're really limited to the computer speakers.
Shipping is within the lower 48 U.S., corrected above. Thanks.
We can/will happily ship outside of the U.S. but cost seems to get pricey fast due to the size of the box, though with the low pipes pictured above, it shouldn't be all too bad.
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Re: GT-Rx Norge/Sport muffler previews

Postby Martin » Tue Nov 24, 2009 12:21 pm

Sound would be slightly more to the Sport 12, and noticeably more-so then the Norge can w/db-killer installed.
Thanks, and yes, my meg will be similar shape to the one shown below that we build for the Griso 11/8V. Even with our db-killer installed on the system below, it's still sounds like a '60s muscle-car w/duals.
Slightly more to the 1200Sport sounds good. . . but if I read between the lines, the meg isn't really usable on the road on early Sunday mornings?

sound recordings are always "iffy" IMO, as you're really limited to the computer speakers.
I largely agree with that, most recordings are of no use. But if you should make a recording from the original pipe from a certain distance and angle, change the exhaust and make a second recording wthout changing the distance/angle perhaps it would give some impression?

We can/will happily ship outside of the U.S. but cost seems to get pricey fast due to the size of the box, though with the low pipes pictured above, it shouldn't be all too bad.
Being Italian made, isn't it possible to ship it directly from Italy to somewhere else in Europe? (When bought from you of course. . .)

I think the looks of the new exhaust is very attractive.
How is the mounting? with screws or welded (on the pipe).
Do you have a picture how simple/difficult the db-killer could be removed?
What are the benefits for putting this exhaust on my bike? In addition to look and sound?
I mean, far as I know, not every exhaust will make that the bike runs(?) better, are they already being test?
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'70 Trotter
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Re: GT-Rx Norge/Sport muffler previews

Postby GT-Rx » Tue Nov 24, 2009 7:12 pm

Martin wrote:Slightly more to the 1200Sport sounds good. . . but if I read between the lines, the meg isn't really usable on the road on early Sunday mornings?


Arguable I guess... if you don't want to disturb the neighbors, and you think that anything beyond a stock muffler is acceptable, then for sure not.

But if you should make a recording from the original pipe from a certain distance and angle, change the exhaust and make a second recording wthout changing the distance/angle perhaps it would give some impression?


See post above. ;)

Being Italian made, isn't it possible to ship it directly from Italy to somewhere else in Europe? (When bought from you of course. . .)

The mufflers are made in Italy, however all functionality is by GuzziTech, so they would be available direct from us only.

I think the looks of the new exhaust is very attractive.
How is the mounting? with screws or welded (on the pipe).
Do you have a picture how simple/difficult the db-killer could be removed?
What are the benefits for putting this exhaust on my bike? In addition to look and sound?
I mean, far as I know, not every exhaust will make that the bike runs(?) better, are they already being test?

Thanks, and the stainless is by bolted bracket into the reinforced body, and the carbon will have a matching carbon perimeter-fitted strap. The db-killer has one bolt from the bottom, and pull out... very simple.
Additional benefits: Above mufflers are in excess of 10 lbs./4.5kg lighter then the stock muffler.
I will try to get some dyno numbers, but it won't be until early next year at this point. Following is a glorified quote from one of the other muffler manufacturers, which I can guarantee these would be similar to... no dyno graphs are shown:
On development using the in-house Dyno we achieved a six horsepower improvement right through the range. Torque was increased at the right spots and there are significant gains right from the bottom through the mid-range. On the road is where the gains are truly appreciated - the throttle response through mid-range is instant and smooth and feels like more then a 6 hp increase. Throttle roll on is also smooth and responsive and has removed any hesitation.
What about the noise?
Restrictors in: 82 dba @ 3500 rpm
Restrictors out: 89~93 dba @ 3500~4500 rpm
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Re: GT-Rx Norge/Sport exhaust previews

Postby Bisbonian » Wed Nov 25, 2009 4:56 pm

GT-Rx wrote:No interest folks?


I have interest, just no money to go along with it.
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Re: GT-Rx Norge/Sport exhaust previews

Postby frank73x89 » Wed Nov 25, 2009 6:57 pm

I suppose one cannot run a stock fuel map so need a new one?
Unless equipped with PC-V and/or AT?
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Re: GT-Rx Norge/Sport exhaust previews

Postby GT-Rx » Wed Nov 25, 2009 7:12 pm

Bisbonian, appreciate the input.

frank73x89 wrote:I suppose one cannot run a stock fuel map so need a new one? Unless equipped with PC-V and/or AT?

Frank, I think most bikes to date are running slip-ons with no fueling modification(s). The 02-sensor will keep the fueling (as super lean as) the OEM programed target AFR, and the fueling above the closed-loop portion is a little on the rich side. Pretty much bolt on and go ordeal... although controlling the fueling makes it all the better. That help clarify?
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