"Tromb" Exhaust System Bonneville/Thruxton
- Bonneville versions with wire wheels (2001-2016, 790/865cc)
- Bonneville versions with alloy wheels (2009-2016, 865cc)
- Thruxton 900 all versions (2004-2016, 865cc)
Attention : Not compatible with a center stand (if your bike has one, get rid of it and use our workshop stand, a much smarter solution !).
Exhaust line 2-into-1 with reverse-cone silencer for classic looks.
100% stainless-steel construction with removable baffle.
Available in polished stainless steel, brushed stainless steel or ceramic black (powder-coated then baked in 300C autoclave oven for strong resistance).
Weight only 4 kg, less than half of the original exhausts.
Noise level intermediate 3/10, one step louder than stock with a more "direct" sound. Removable baffles. Certified "Euro 3" (with dB-killers in place), supplied with E3 certificate.
For EFI bikes the downpipes include the locations to re-fit the O2 sensors - these can also be eliminated with this kit.
This video (here) will give you a good idea of the sound produced.
Designed and crafted by MASS Moto in Italy. MASS is a small company that combines passion and high technology to produce products of very high quality and perfect finish. All MASS products are made of aviation-quality stainless steel and are type-approved for Europe.
We recommend fitment by a professional, unless you are experimented in such things.
Requires no modification of the bike, totally reversible assembly.
It is recommended to perform a carburetor/injection adjustment to maximise the gain in performance and sound.