| Anyone hear anything good about them? im looking to upgrade over oem. I have sz 4 bolt downpipes so i do not want to buy 5 bolts for most of the other turbos. the price seems very good. how do they compare to sport 500's? Will also bu upgrading to 2.5 inch piping w/SMIC's stage 1 cams (debating) Ported oem turbo manifold..
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