The stock 351CW has a disproportion assembly to promote quick spool and nothing more.
We replaced the tiny 58mm HY35 sized turbine wheel that comes stock and installed a Super 40 10 blade 67mm turbine wheel for max performance. With a matched 67mm compressor wheel this makes for a beastly 6767 vs the stock 6058. The Waste Gate will also be ported for optimal exhaust flow. This will help you control boost without the aid of an external waste gate. We simply cannot fit a bigger turbine or compressor wheel in these housings.
Listing is for a rebuilt and upgraded genuine Holset turbocharger. If you want to send in your core for the upgrade we can offer this service for a reduced price.
We can also apply this upgrade to the following models:
H1C H1E HX35 HX40 HE351CW HE351VE HE300VE