Two Brothers Racing carbon mufflers

**Hitcher** · 26th March 2007, 11:59

Recently, thanks to the inimitable Kerry at TSS, I acquired a pair of Two Brothers Racing carbon mufflers for the FJR.

Why, you may ask?

Well, I thought that the standard cans on the FJR were like way too quiet for a sports tourer. They also looked clunky in that sort of industrial-stainless-steel-machine-welded-unnecessary-tonnes-of-bulk kind of way that most manufacturers insist on installing to their bikes.

Why Two Brothers Racing?

After a lot of browsing around on the Interweb, I really liked the design, particularly of the can exit end. Most aftermarket muffler manufacturers insist on completing their products with a sort of nipple-like extention -- usually a bit of stainless pipe with a flange on the end that protrudes from the can's arse. This can look OK on mufflers that slope upwards at angles of 30 degrees or more. But for bikes where the can is more or less just off the horizontal, I think that this form of conclusion looks a bit, well, limp. No flaccid cans for this lad. I also liked the way they looked and sounded on Dafe's V-twin Suzuki thing.

Why carbon?

It's light and strong. And it looks wicked.

Do they make any difference to the bike's noise?

I'm sorry, what did you say? Um, yes, they do. They have liberated the FJR's beast within. It now growls like a werewolf, howls like a banshee and burbles like the rhythm section of a metal band. I suspect that there are dogs in towns through which I passed this last weekend that are still chasing their tails. Once again, in the process of overtaking vehicles, drivers have wound down their windows to hear a bike overtake them. They're still probably suffering from tinnitus.

Any other benefits?

Well, apart from looking way cool and reducing the bike's sprung weight by at least 8kg, I reckon the throttle response is better.

I shall post some photos as soon as I have taken them.

So on balance, are you satisfied with your purchase?

Yes.

**WRT** · 26th March 2007, 12:02

Browing on the Interweb? Is that similar to cresting?

**MSTRS:Me** · 26th March 2007, 12:25

Originally Posted by Hitcher

.... a pair of Two Brothers Racing carbon mufflers for the FJR.

Do they make any difference to the bike's noise?

They looked damn nice, but can't say I could hear them over my Yoshi.

**Blackbird** · 26th March 2007, 12:34

Sounds dangerously like sprotsbike inclinations to me Mr H

I prefer silence on my fat sprotsbike on the grounds of not wanting to draw attention to myself.

**Hitcher** · 26th March 2007, 12:36

Originally Posted by Blackbird

I prefer silence on my fat sprotsbike on the grounds of not wanting to draw attention to myself.

I, however, quite like to see young children run screaming to their mothers.

**u4ea** · 26th March 2007, 13:06

ahh very interesting as I have been looking at those and assuming they would sound terrific and make the bike perform better!good stuff!

**avgas** · 26th March 2007, 13:11

bloody awesome mate - i love loud pipes.
Quiet bikes don't seem right in my mind. But invest in a good helmet if you have loud pipes - cheap helmets make you tone deaf.
How about a pic of the fj with the new shooters?

**James Deuce** · 26th March 2007, 13:28

Originally Posted by MSTRS

They looked damn nice, but can't say I could hear them over my Yoshi.

You will. From about 200m away too. I USED to think my Micron was loud.

**MSTRS:Me** · 26th March 2007, 14:15

Originally Posted by Jim2

You will. From about 200m away too. I USED to think my Micron was loud.

Nah - rode with Hitcher on Saturday up to Wairoa - didn't sound loud to me, sitting 20/30 metres back.....

**JimO** · 26th March 2007, 18:34

do you have to do anything else to make the bike run sweet a mate has some new carbon mufflers on his injected 900 monster and he recons its running rough and backfires on changing down

**James Deuce** · 26th March 2007, 18:42

Originally Posted by MSTRS

Nah - rode with Hitcher on Saturday up to Wairoa - didn't sound loud to me, sitting 20/30 metres back.....

Oh yes. I forgot. Unlike me you're REALLY old.

**James Deuce** · 26th March 2007, 18:47

Originally Posted by jimjim

do you have to do anything else to make the bike run sweet a mate has some new carbon mufflers on his injected 900 monster and he recons its running rough and backfires on changing down

Fuel injected bikes will do that and the only way to fix it is a Power Commander and some time on a dyno setting maps up. All bikes have their fueling setup as a compromise between emissions produced at a certain rpm range, rideability and performance. Unfortunately for us the Greens are currently winning the fight to make the IC engine as inefficient as possible.

The popping and banging on over run is most likely caused by air getting into the exhaust system through the junction of the exhaust cans and the headers or collector box.

**Hitcher** · 2nd April 2007, 18:25

Here's a photo of the right-hand member of the pair. Please ignore the very dirty rear rim.

**Dafe** · 2nd April 2007, 18:33

Thats cool! How's it sounding? Can't wait to see the beast in the flesh......

Here's a sample of the cans in Polished Alloy. They look like stainless, but they aren't.

Yep, I love the Magnesium end caps. I had Two Bros on my last SV, this time round I wanted something a little different on my new SV and the end caps are a nice alternative. As for the sound - Wicked!