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This product is legal only for closed course competition use and is not legal for vehicles used on the street or even for off-highway vehicles which have a vehice emissions control label.
Biltwell Mini Exhaust Slip-On Muffler
Biltwell Mini Mufflers slip fit over the open ends on 1 3/4" O.D. header pipes to change the look and sound of the exhaust system on your motorcycle. A perforated steel baffle tube with fiberglass wrapping inside the mini muffler can be removed to change the exhaust tone. These babies beat drag pipes, and they are super-classy. Small muffler, small price, big sound.
Available in matte black high-temp powdercoat or triple-plated chrome finish
TIG-welded 16-gauge steel canister with 1 3/4” I.D. slip-joint end
TIG-welded, stamped steel hanger bracket with Biltwell anvil marking
Gold zinc plated 16-gauge perforated steel baffle with stamped end cap
Fiberglass packing around removable internal baffle assembly
I put these on my BMW R100
I was looking for something small to put on my 1977 BMW R100. I love the way these look on the bike. I wanted something that would draw almost no attention the bike visually. I put them on with the baffle and they sound good. Even with the baffle, it's a pretty loud exhaust, but I knew that when I bought them. The price seems a little bit high for the simpleness of the exhaust, but overall I'm happy with it.
July 13, 2015
Awesome product and fast service from Revzilla
Awesome product and fast service from Revzilla. The company was very receptive to my needs and even though I had ordered the wrong part, they paid for the return and shipping on the correct part.
January 19, 2015
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Anthony B:They will, but you will need to get a reducer kit (Dime City Cycles sell's them for about $7). These fit 1 3/4" O.D. pipes, Triumph Bonnie's and Thruxton's have 1 1/2" pipe end's. The reducer's (cylindrical metal fitting) just slip's inside the end of the muffler that slip's over the pipe end and it reduces these metric mufflers from fitting a 1 3/4" pipe to a 1 1/2" pipe. To mount them you will just need to purchase Biltwell's Duo Muffler clamps, they're sold as a pair for around $30 on here, Revzilla, or you can purchase them directly from Biltwell's site along with the muffler's, or LowBrow Customs site as well…just in case Rev ever runs out of them.Nov 19, 2014
I am going to add, because while most of what he said is correct, (I am in the process of putting these on my 09 Bonneville SE) the duo clamps are NOT sold in a pair, they are sold individually. I only have one clamp and am riding with no mufflers right now because I only ordered one lol.
May 14, 2015
Anthony B:Also, as I'm sure you know, make sure to remap your Thruxton as well if you decide on these. Should cost anywhere between $40-$60 at your local Triumph dealer. Price is just dependent on how long it takes the employee to remap your EFI. Other than that these would work great!Nov 19, 2014
Anthony B:They will lessen the db's a little bit, not extensively though. If need be and you want those db's up, just take out the removable baffle. If you go to Biltwell's site or LowBrow Custom's site, or youtube you can watch videos on each muffler to hear what it sounds like. Just as the description says, they may be small but they pack a good punch…pretty dang loud!Nov 19, 2014
A shopper asked:Hello, I have mounted these mini mufflers on my Kawasaki W650, the sound is great but too loud. I wonder if it exists a solution to reduce the sound excepted the existing fiberglass tube inside ?
Anthony B:They will, but you will need to get a reducer kit (Dime City Cycles sell's them for about $7). These fit 1 3/4" O.D. pipes, Triumph Bonnie's and Thruxton's have 1 1/2" pipe end's and so should a Scrambler. The reducer's (cylindrical metal fitting) just slip inside the end of the muffler that slip's over the pipe end and it reduces these metric mufflers from fitting a 1 3/4" pipe to a 1 1/2" pipe.Nov 19, 2014