Moto Grand Prix
Main Motorcycle: 2016 Triumph T120
Join Date: Nov 2006
Location: West of the Pecos, TX USA
Other Motorcycle: 2007 Ducati GT1000
Extra Motorcycle: 2003 Triumph T100
On my T120, this was a pretty straightforward job, but it took me a full day. I work slowly.
I just dropped the left lower frame cradle bar without removing it. It must be the left frame cradle, as the mount will only allow the cat to be removed to the left. Be careful of the side stand switch wiring harness, which can be disconnected to avoid damage from pulling.
I did remove the exhaust system, which made things easy to access. Be very careful with the exhaust system gaskets, which are delicate and easily damaged. You don't want to over twist or kink the wires to the O2 sensors on reinstallation. Since it takes five full turns to install each O2 sensor, I just twisted each sensor five turns CCW before screwing it back in. After installation, pull the insulating cover back a little to check that the wires are not twisted.
Carefully note how the clamps are installed on the the cat before removing them, especially the V-clamps. They must go back on in exactly the same way.
Each X-pipe out there installs differently. I went with the Tec offering because it fits perfectly and uses the original mount and hardware. You can retain the small stainless steel cat shield, if you like.
Bottom lines on the X-pipe: there's more sound and less weight. There's one heck of a lot less perceived engine heat. There's no engine remap required, no odd burbles or pops on decel, and fuel economy is not effected.
Photo: Ducati GT1000 at Utah's Bonneville Salt Flats
Last edited by tsmgguy; 06-13-2019 at 10:18 AM.