quote:they only list 1 1/4", 1 1/2" and 1 3/4"
there was no 1 3/8".
Yup. They don't make one in our size. If you order one from a seller that says his fits our size, you will most likely get the 1.25" unit with two wide, thick rubber bands you are supposed to put around the Tefba necks to take up the slack.
Or you can buy the 1.5" size, and wrestle our 1.375" hoses to fit.
Here is another stateside seller:
http://www.v12performance.com/Tefba.html
I solved the size misfit issue by buying two silicone hose adapters.
Despite a lot of searching, the stepped adapters I needed just couldn't be found in inch sizes.
Then I found out they are usually listed with metric dimensions.
What you want is a 38mm x 35mm "straight reducer"
I bought mine from a UK eBay seller. At the time, no USA eBay seller offered the reducers in black, just blingy ricer colors.
Today I did find one USA eBay offering in black.
UK pricing per item is about half USA pricing. But with postage, buying at USA prices with free shipping comes out about the same.
Two reducers will set you back about $30
Be aware you need silicone-specific "T-bolt clamps", four of them. They aren't cheap, either.
IIRC, I found them cheapest at Summit.
But we have $50K-$100K cars. Do we really need to scrimp buying $50-$100 worth of parts?
Larry
eBay auction
don't let the photo mislead you. the adapters are 3"long and work just fine
http://www.ebay.com/itm/1-5-38...em5d5a251801&vxp=mtr
