What exhaust headers have 818 builders used?

The engine in my 818R is from an '06 WRX and has been built to produce more power (Darton sleeves, forged pistons, 1000cc injectors, Blouch Dominator 1.5 turbo).

The engine came with a 4-into-1 after market headers (looks like a Thomei Expreme), but they extend 1-3/4" below the bottom of the chassis (8-5/8" from the cylinder head exhaust port to the bottom-most part of the header).

2016_07_04 818R Work (9).JPG

One of the 818R builders said he used the stock Subaru exhaust manifold, because the after-market headers extended down too far and were not worth the price.

Any suggestions?

What about raising the engine? In the 818R set-up, the suspension is raised an inch or so, so why not? (Because it would raise the center of gravity?)

Thanks.

Duncan