Need your help fellows. Cricket shroud shrunk "shrunk" almost 2 inches!

Well, I actually added a plenum power tune extention from Ernest Rowe, and now the airtube is longer than the shroud by 1.75 inches. It looks really funny. What would be the most cost effective way of fixing that? Neil clague quoted me 100$ plus shipping to extend it and add a thread and thread protector on the end which is very reasonable, but perhaps there is an even better option? Maybe someone has used grub screw type on they want to sell? Any ideas would be welcome. Thanks! 
 
Get a DonnyFL screws right on and matches the diameter perfectly. I don't have a picture handy but it is a perfect fit.

I do, here ya go:

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