there are two diffs that are both great kazz and os giken that i recommend
the kazz is cheaper and is very good i ran it in my hatch back for 3 years never with any problems and the os giken was in my coupe. the os giken is a little pricey but it is worth every penny. even marco and haig had it in their cars and it never let any of us down. very strong and reliable
hope that helps
Robert Ricci
Ricci Drift Team