Gonna be putting on D & D pipes, 3: 1: 2: What would be the best triumph tune to install?? should I change underseat filter to K&N??? Wanna keep the best fuel mileage also.

Thanks

Look under "Trading Tunes" or search for "Tuneboy Modified Tunes".

Pigger listed most of the choices for intake/exhaust combos & the respective tune for each there. That's where I found the info to make my choice.

thanks Rusty, I'll take a look.

I don't believe you'll find a specific tune for an underseat K&N; but, I don't believe there'd be much difference, if any, with an undertank K&N. The underseat K&N has been on my tadu list.
On the otherhand, leaving the fresh air duct in place under the seat may be an air flow limiting factor that will negate any improvements with the K&N. I removed the air duct for other reasons.

I would probably run the 20150_1 tune from the Tuneboy page. There are no custom tunes for D&D's out there, but this should get you in the ballpark. You might get some decel popping but that can be taken care of.

TuneBoy V3.0 Tune List

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There is no replacement for displacement.

Thanks Pig9r, i couldn't find 20150_1 on that list, did find 20050_1 though staintune exhaust. Is that the one you mean??

thanks

Yes, sorry I typed wrong.

__________________
There is no replacement for displacement.