This 3" Overpipe/Downpipe Combo replaces both the overpipe and the downpipe, thereby opening up the connection between the header and the catback exhaust. Ideal for high horsepower naturally aspirated and forced induction vehicles, the 3" diameter has netted the highest numbers on all of our forced induction and long tube header development vehicles. From a turbocharged perspective, the net gains on a 3" exhaust vs. the factory diameter are quite substantially, often netting upwards of 50ft lb of torque over factory exhaust diameters. For naturally aspirated vehicles running our long tube 4-2-1 Header and factory intake manifold, gains as high as 49ft lb at the wheels have been seen with the full 3" exhaust and tune.
Featuring mandrel bent T304 stainless TIG welded construction and gusseted hanger, this design is a must have for those enthusiasts wanting to get the most power out of their 2013-2017 BRZ / 86 / FR-S / GT-86. Utilizing an SCCA legal 200 Cell catalytic converter and a 3" straight through design resonator allows us to reuglate tone and keep it emissions friendly.
At the aft end of the overpipe/downpipe, a 3" donut gasket is used to connect the outlet to any 3" midpipe. We also now offer a reduced 2.5" outlet which meets with any OEM or OEM sized midpipe. We have seen great results using this part to get the power gains of the 3" pipe, with the compatibility and volume levels of a smaller diameter catback section, most common with our Autocross Program. The 2.5" outlet only affects the rear most circuit of the downpipe, reducing down to a stub flange exactly like the OEM and our full 2.5" offerings for the BRZ/FR-S.
This product is not compatible with the AT transmission or RHD cars.
All prices are in USD