GrimmSpeed 3in Downpipe to Stock Cat Back Adapter Subaru WRX 02-21 / STI 04-21 | 077044 Vehicle Model_Mazdaspeed Mazda3 Check the manufacturer's specifications about

Check the manufacturer's specifications about the proper flywheel step for the application

Fully programmable

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GrimmSpeed 3in Downpipe to Stock Cat Back Adapter Subaru WRX 02-21 / STI 04-21 | 077044 Vehicle Model_Mazdaspeed Mazda3 Check the manufacturer's specifications aboutFitment Information: 2002 2021 Subaru WRX 2004 2021 Subaru STI 2005 2009 Subaru Legacy GT 2005 2009 Subaru Outback XT 2004 2013 Subaru Forester XT Features: Kill that exhaust leak for GOOD! This GrimmSpeed adapter will allow you to adapt and properly seal an aftermarket 3 inch downpipe to a 2. 5 inch OEM or OEM like catback exhaust. This adapter only works with a flared end and it creates a smooth transition from your 3" inch aftermarket downpipe to