i think jenvey has the best tb setups
they have the DCOE style in a standard length and a size that is half the lenght of that which i believe would help in tuning by changing the lenght of the air horns
also for a fuel injected turbo application it allows alot more plenum volume with out cut into your gt
i have never heard of the sds computer systems
are they descent priced easy to tune?
can you give me a link