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For a stockish 4-53T, the S257SXE or the GT3576R are good matches that will spool faster than the original turbo, especially the GT3576R being ball bearing. I have wholesale connections for BW, Garrett, and Pulsar. A S257SXE with .83 T4 turbine housing would be right about $850 shipped, Garrett is over $2k so I'm not even going to bother, and the Pulsar GT3576R would be just under $600 shipped.

A friend of mine has been using the Pulsar units for over 2 years on 30 couple drift car builds with zero issues or failures. I'm going to be running a Pulsar S363 and S475 on my compound turbo 4-53T. My goal is 400whp so my air needs are good bit different than most here haha.

Vwjunkie53, aka Jason, is going to try a Pulsar S363 on his 4-53t chevy as a single very soon. He's running 90 injectors now, will put in 110-120's in it when funds allow. A handful of guys have run the Borg 177272 s361 with good results on 4-53T's so we're hopeful.
 
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