I had an opportunity to try some things while working out a pan modification. So take a look:

MiataV8 Conversion: Tri-Y Headers, 6-speed

Mike

 

Mike, good work! The T5 I'm running serves my needs and I like the light compact design. What I really like is how the Tri-Y's work with your subframe. The don't look at "right" as 4 into 1, but from all I read they usually make very good street power. At least in the normal driving range up to about 5k.

Due to working out of state I still haven't done anything on changing out my subframe, it's now a next winter project but new headers are part of the project package.

 

Sweet! How is the clearance on the steering shaft?