Quoting belize1334:
I still don't understand why nobody has made a twin scroll mani to put an EvoX turbo on a DSM. Spool of a s16g but tons more power, and unlike the 3-9, it's pointed the right way. If FP makes a cast DSM manifold, why don't they make one for that setup?
At least two companies do this - Revspeed and someone else - made to order for about $800USD
Yes, it would look cool and you can get the parts cheap enough, but getting it all to work quickly becomes uneconomic, unless you can do all the fab work yourself.
For $1000USD you could get any one of Forced Performance's custom bolt on turbos, which put out 51-65 lbs/min /ubbthreads/images/graemlins/dunno.gif