New BW EFR Turbo Thread
yeah, 1.05 twinscroll ewg 8374 for me. going on a 10:1 2.23L 4g64 with an ams f-1i intake, headgames race head, big custom cams and all the supporting mods.
testing is not just numbers... we use some efrs in circuit racing... and sofar they a great... even on some fitment applications... the wider CHRA is and way better design than garret... the stainless housing etc... tha waiting is painfull... but if I can buy a turbo of a shop shelf I will end up buying the EFR over the GTX.


