Originally Posted by
Alpha
T51R KAI has a 94mm exducer on the compressor and a 76mm inducer on the turbine. T51R SPL has a 102mm exducer on the compressor and 82mm inducer on the turbine. IMO they are both overpriced

Cheaper alternatives with the same quality and power output. Supra sounds good though

Beat me to it. Im also not so sure about the T51...
Also, whats this about Vband, ive got a vband turbine outlet and so do most other guys i know with anything precision/garrett based...
take care