ATP Turbo GEN2 - GTX3071R Bolt On Turbo Kit for Mazdaspeed3 (2007 thru 2014)
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The GEN2 GTX3071R compressor housing has a 4" ported shroud inlet and 2" outlet.
The product does not include a 4" or 3" inlet pipe and 3" downpipe necessary to complete a "kit" in order maximize the turbo. The GEN2 GTX3071R is the best spooling turbo on the market capable of achieving 600HP. Highly recommended for a very broad powerband with a lot of "area under the curve".
APPLICATION NOTES:
Coolant line installation guidance material available here