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bought a 98 r1100s with the cat removed and a pair of art carbon cans.

question is, the fuel injection ain't gonna automatically take into consideration the freer-flowing cans when it calculates the air-fuel mixture, and i'm fairly sure no mods have been done to the management, so just what potential damage am i doing to my 'bulletproof' engine?

must say i'm none too bothered about exhaust volume either way, and if i can land on an oe exhaust then i'll probably get it. the only thing is how soon? do i need to start worrying? there's a bit of soot in the pipes, but nothing that concerns me overly; hey, it's a big twin.

Hi
First off get rid of those turds you have immatating decent cans.They are shite and will fall apart.
Laser end cans are the favourite choice along with y piece.Though stainetunes are a close second.Standard cans with a y piece works well.
I ran y piece laser cans without a chip for a long time with no ill effects concerning engine damage.Though a chip or pc3 will make the bike fuel loads better.
gus

Dudes - I don't know why you hate the Art carbon cans. I had a pair once and thought they looked OK and sounded OK too (& you know what a Sothern Label Concious Softie I am ).

The only set I've known self destructed after 14 months with the rivets pulling thru the carbon sheet, the supplier wouldn't entertain any sort of recompense. Not sure carbon is a good idea in general for exhausts in the long term

Dali..You have a PM...May be able to sort your cans problem...

Cheers Andy

I had a pair once....never again; looked like some 4 year olds had been let loose with a welder!
Made the bike like a heap of pooh too!
Bailey.