Triumph Daytona & Street Triple 675/765 all years De-Cat Exhaust ServiceTriumph Daytona & Street Triple 675 765 all years De Cat Exhaust Service. We can remove your cat and exhaust valve and make the headers straight through with no restrictions. This is a must for older bikes where the exhaust valve may fail or the cat is getting blocked. Available for Street Triples up to 2016 also. NOTE: 2013 onwards we just remove the cat and leave the cat part of the pipe in place. Ship your headers with name, address and email to: