Generation III External Engine - turn down on dmh cut out?

got my dmh cut out wanting to put a turndown on it... anyone else have one and if so where did you get it... thanks in advance

will the qtp 11300 work??

I was just going to post that one.

I just searched and ordered it, qtp 11300, i have a 3" dmh cutout.

Ordered a gasket as well just in case ( VPE-1463 )

Order from summit, great price, it seems it swivels as well which is cool, and stainless for $23 bucks.

Cool ill get one of those too... thanks

I don't have one on mine. I was told it will cause drone.