Exhaust Options

[GrinchF16]

Installing a YIO-360-A1B6 on my 7A. Vetterman says mid-July at earliest for the exhaust. I’m not building but trying to get airborne again so would really like to get going ASAP. Replacing an O-360 and the flanges from that exhaust don’t line up on the new engine. What are my options other than Vetterman?

Thanks