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Downpipe Kit with 300CPSI Racing catalyst converter for Subaru WRX STI 2007-2018
made out of high quality stainless steel 1.4301 (SS304)
complete Ã˜ 76mm (3 " )
high quality 300CPSI Euro6 standard racing metal catalyst converter
100% perfect fit, plug and play
less thermal load on the turbocharger
more power by reducing back pressure
significantly more torque
optional with Ã˜76mm (3 " ) decat-pipe