While we're on the subject of aftermarket sequential twins, I've spoke to 2 guys on Supraforums, one in Europe, and one here in the US, both who are engineers and claim to be completely able to make a fully functional aftermarket twin turbo setup. They did, however, say it would run $20,000 - $25,000 to do...

 

I'll do the job for 20 grand... Where is the money, hell we'll try a group buy!

Bryan@BNR