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6061 ALUMINUM CONSTRUCTION
These have a longer duration profile along with an added RPM potential
as well as fully forged stroker rods and CP pistons
Satisfies the gear oil viscosity requirements of 75W
The powdercoated finish resists chipping and fading
MBRP Street 3in Quad Tip Cat Back Exhaust - 2015-2021 Subaru WRX / STI Subaru-STI-2018 6061 ALUMINUM CONSTRUCTIONThe 3 Inch Cat Back Exhaust System will improve the sound and the performance of the Subaru WRX STI. RallySport Direct carries a great selection of quality performance exhaust systems and exhaust components brought to you by MBRP. Here, you are looking at the MBRP 3 Inch Cat Back Exhaust System. This exhaust system features smooth mandrel bends that limit back pressure and turbulence. When combined with a larger piping diameter, you get an increase in
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