I will post the info on the intake hose as soon as I have a solution worked out. As mentioned, the throttle body-side of the hose is 2.36" (~60 mm). But the MAF-side is 2.75" (~70 mm). That's part of the problem I'm encountering: the dimensional-change in hose diameter. 2.75" intake parts are not too difficult to find. The smaller opening is odd, though I haven't looked at import parts spec'd to metric measurements.

On a related note, I was looking over exhaust pipe adapters and found some that could work for the application. But it wouldn't be easy to fab up a hose system that way. Then I started thinking that it might be possible to have a muffler-guy bend up some pipe and expand the openings so the outside diameters would match up with TB and MAF ports (or an adapter... like a 3", which is very common). If the bends are good, I could cut the pipe and install a hump hose coupler in the middle and attach the bends with reducers or straight couplers. The hump coupler will provide the flex for final fit and to compensate for engine torque. I will check with my muffler-dude soon to see if that approach is viable.

The other option is to cut out the corrugation on the stock hose and use the end pieces as couplers, either in conjunction with the above-mentioned approach, or using a section of solid tubing to connect the two ends. However, the solid tubing would not provide any flex. And I don't think the hose ends would, either.

And if none of that pans out, I can always use tape... <img src="/forums/images/graemlins/notooth.gif" alt="" />