Mishimoto Catted Downpipe / J-Pipe 6 Speed 2015-2021 WRX

Description:
Mishimoto is proud to release the performance Subaru WRX downpipe for the 2015-2019 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 on the 6-speed WRX (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 on the 6-speed WRX (see additional images for dyno chart). Above all, this downpipe provides a significant torque improvement in the low end and across the entire powerband. 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!

Features:
- Dyno-proven gains of up to 57 whp and 52 wtq with catted downpipe and Mishimoto Subaru WRX Tuning Kit, using 93 octane fuel on 6-speed WRX (see additional images for dyno chart)
- Dyno-proven gains of up to 73 whp and 64 wtq with catted downpipe, Mishimoto Subaru WRX Tuning Kit, and Mishimoto Subaru WRX Performance Air Intake, using 93 octane fuel on 6-speed WRX (see additional images for dyno chart)
- Significant torque improvement in the low end and across the entire power band
- Extremely aggressive turbo and exhaust tone under acceleration and boost
- 304 stainless steel one-piece design allows for uninterrupted exhaust flow
- 3/8" thick stainless steel, CNC-machined four-bolt flange
- 3.5" to 3.0" transition out of turbo outlet allows exhaust gas to flow smoothly
- Additional wideband oxygen-sensor bung and plug-in ideal location for aftermarket wideband sensors
- Mates with the stock cat-back exhaust
- New studs for turbine housing
- High-flow catalytic converter (optional)
- Includes stock gasket for turbo outlet

Specs:
- Pipe Material = 304 Stainless Steel
- Flange Material = 304 Stainless Steel

Includes:
- 1 x Stainless Steel Downpipe w/ 4-Bolt Turbo Flange and 2-Bolt Cat Flange
- 1 x Stainless Steel Transmission Bracket (Manual or CVT)
- 1 x Additional M18 x 1.5 O2 Bung with Plug
- 1 x 4-Bolt Flange Gasket
- 1 x 2-Bolt Flange Gasket
- 4 x M10 x 1.25 Exhaust Studs
- 2 x M10 x 1.25 x 40mm Hex Bolts, Stainless Steel
- 6 x M10 x 1.25 Serrated Flange Nuts, Stainless Steel
- 2 x M10 x 1.25 x 16mm Hex Bolts (w/ 5mm Head Height), Stainless Steel
- 4 x M10 Washers, Stainless Steel
- 2 x M8 x 1.25 x 20mm Flange Bolts, Stainless Steel
- 1 x M6 x 1.0 x 10mm Flange Bolt, Stainless Steel

Applications:
2015-2021 WRX (6 Speed ONLY)