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Mishimoto is proud to release the performance Subaru WRX downpipe for the 2015+ models. The biggest restriction in the stock exhaust system is the downpipe. By installing the Mishimoto WRX downpipe, the FA20DIT exhaust system is able to breathe easier, providing a significant increase in horsepower and torque when tuned. During countless dyno pulls, Mishimoto saw gains of up to 73 whp and 64 wtq with the catted downpipe, Mishimoto Subaru WRX Tuning Kit, and Mishimoto Subaru WRX Performance Air Intake using 93 octane fuel (see additional images for dyno chart). With the catted downpipe and Mishimoto Subaru WRX Tuning Kit, Mishimoto saw dyno proven gains of up to 57 whp and 52 wtq using 93 octane fuel (see additional images for dyno chart). Above all, this downpipe provides a significant torque improvement in the low end and across the entire power band. The Mishimoto 2015 WRX downpipe provided an extremely aggressive turbo and exhaust tone under acceleration and boost, giving you that aggressive tone you have been looking for!
The engineers at Mishimoto designed the WRX downpipe as a one-piece design with precision TIG-welded 304 stainless steel. This allows uninterrupted exhaust flow from the 3.5" 4-bolt exhaust flange all the way through the 3.0" downpipe. The engineers also created two different transmission-specific brackets, for the 6-speed manual and CVT, to mount the downpipe to the transmission. To customize the WRX downpipe even further, it is offered in either a catted or catless version. Because the engineers know that WRX owners commonly like to add wideband O2 gauges, they included an additional O2 sensor bung and plug in an ideal location for aftermarket wideband sensors! To top it off, the 2015 WRX downpipe includes new turbine housing studs and nuts (which commonly strip), a new turbo outlet gasket, a new 3” 2-bolt flange gasket, and all stainless steel hardware, so you don’t have to worry about rust on your hardware. The Mishimoto Subaru WRX Downpipe is proudly made in the USA and comes with the Mishimoto Lifetime Warranty you know and trust.
PIPE MATERIAL
304 Stainless Steel
FLANGE MATERIAL
DIAMETER
3.5" at Turbo Flange 3.0" From First Bend to End of Pipe
PURCHASE INCLUDES
(1) Stainless Steel Downpipe w/ 4-Bolt Turbo Flange and 2-Bolt Cat Flange (1) Stainless Steel Transmission Bracket (Manual or CVT) (1) High-flow Catalytic Converter (1) Additional M18 x 1.5 O2 Bung with Plug (1) 4-Bolt Flange Gasket (1) 2-Bolt Flange Gasket (4) M10 x 1.25 Exhaust Studs (2) M10 x 1.25 x 40mm Hex Bolts, Stainless Steel (6) M10 x 1.25 Serrated Flange Nuts, Stainless Steel (2) M10 x 1.25 x 16mm Hex Bolts (w/ 5mm Head Height), Stainless Steel (4) M10 Washers, Stainless Steel (2) M8 x 1.25 x 20mm Flange Bolts, Stainless Steel (1) M6 x 1.0 x 10mm Flange Bolt, Stainless Steel Mishimoto Lifetime Warranty
OVERALL SIZE
65" x 12" x 5.5"
WEIGHT
18 lbs (with cat)
NOTE: This product has been designed to fit both manual and CVT transmission vehicles. The appropriate product must be purchased to ensure the correct transmission bracket is included.
This downpipe cannot be used with the stock ECU programming. It is required that the customer is able to retune the vehicle's ECU after installing the downpipe.
