Downpipes

J-Pipe Catted - Subaru 15+WRX [6MT]

Meticulous engineering meets elegant design. With the 2015-21 J-Pipe, the devil is truly in the d...

Meticulous engineering meets elegant design. With the 2015-21 J-Pipe, the devil is truly in the details and the product development team here at GrimmSpeed has taken the time necessary to knock each of those details out of the park. As a result, what you see here is a meticulously engineered J-Pipe with an innovative flange design, single piece construction, excellent ground clearance and fitment with superb quality and craftsmanship. Quick Specs Innovative Turbo Flange Design - 1/2" thick w...

$815.00 $7,560.00

J-Pipe Hardware Kit - Subaru 15+WRX/FA20

Save yourself MAJOR headache. The turbo studs on the FA turbo motors are notoriously difficult to...

Save yourself MAJOR headache. The turbo studs on the FA turbo motors are notoriously difficult to deal with. If you're lucky enough to get the nuts off without drama originally, be sure to replace them with higher quality hardware. The factory nuts are locking nuts that are prone to damaging the low quality factory studs. With our J-Pipe, we include four custom CNC machined stainless steel studs along with matching nuts. By popular request, we're now offering this hardware kit for sale so tha...

$44.00 $7,560.00

Subaru GESi Catted 3" Downpipe Outback XT / Leg...

DESCRIPTION   The COBB Tuning GESi Catted 3" Downpipe begins with a CAD designed cast bellmouth...

DESCRIPTION   The COBB Tuning GESi Catted 3" Downpipe begins with a CAD designed cast bellmouth that smoothly blends air exiting the turbocharger's turbine housing. Minimizing turbulence when exhaust gasses from the wastegate join into those flowing through the turbine helps to prevent excessive back-pressure. The cast housing is capped off with a COBB logo and auxiliary O2 bung for those wanting to install a wideband sensor early in the exhaust path. A welded bracket utilizes the factory h...

$914.00

Subaru GESi Catted 3" Downpipe STI 2008-2018, W...

DESCRIPTION   The COBB Tuning GESi Catted 3" Downpipe begins with a CAD designed cast bellmouth...

DESCRIPTION   The COBB Tuning GESi Catted 3" Downpipe begins with a CAD designed cast bellmouth that smoothly blends air exiting the turbocharger's turbine housing. Minimizing turbulence when exhaust gasses from the wastegate join into those flowing through the turbine helps to prevent excessive back-pressure. The cast housing is capped off with a COBB logo and auxiliary O2 bung for those wanting to install a wideband sensor early in the exhaust path. A welded bracket utilizes the factory h...

$914.00

Subaru GESi Catted 3" Downpipe WRX/STi 2002-200...

DESCRIPTION   The COBB Tuning GESi Catted 3" Downpipe begins with a CAD designed cast bellmouth...

DESCRIPTION   The COBB Tuning GESi Catted 3" Downpipe begins with a CAD designed cast bellmouth that smoothly blends air exiting the turbocharger's turbine housing. Minimizing turbulence when exhaust gasses from the wastegate join into those flowing through the turbine helps to prevent excessive back-pressure. The cast housing is capped off with a COBB logo and auxiliary O2 bung for those wanting to install a wideband sensor early in the exhaust path. A welded bracket utilizes the factory h...

$914.00

Downpipe Donut Gasket - 02+ WRX, 04+STI, LGT, F...

Replace your worn or leaking OEM donut gasket with this fiber-reinforced graphite donut gasket at...

Replace your worn or leaking OEM donut gasket with this fiber-reinforced graphite donut gasket at a fraction of the cost. Applications:Replaces Subaru part number 44022AA123

$15.00

Turbo to Downpipe Gasket - FA20, 15-21 WRX

An amazing 7 LAYERS! GrimmSpeed™ OEM Style Gasket, OEM quality without the high OEM price.At Grim...

An amazing 7 LAYERS! GrimmSpeed™ OEM Style Gasket, OEM quality without the high OEM price.At GrimmSpeed™ we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi-layer steel oem style gaskets. The issue with the oem gaskets from Subaru is that they are so expensive. Well Grimmspeed™ has your answer, a premium multi-layer stainless steel w/ stainless steel fire-ring gasket at a great price.This product cross-references with Subaru part number is 44616A...

$26.00

APS Downpipe 3-Bolt Gasket

Rejoice APS Downpipe owners, you finally have a great replacement gasket for your APS Downpipe! W...

Rejoice APS Downpipe owners, you finally have a great replacement gasket for your APS Downpipe! We know that you have frequent blowouts so we have delivered a very high quality and thick gasket for you.At GrimmSpeed™ we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi-layer steel oem style gaskets. The issue with the oem gaskets from Subaru is that they are so expensive. Well Grimmspeed™ has your answer, a premium multi-layer steel w/ stainless s...

$22.00