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Invidia high-flow catalytic downpipe for select Subaru applications (WRX 2008+, STI 2005–2009, Legacy 2002) replaces the stock downpipe with a less restrictive high-flow cat and includes an extra O2 bung. The direct-fit piece targets improved exhaust flow for turbocharged setups while preserving a catalytic element where required by fitment.
Invidia 08+ Subaru WRX/ 05-09 STI / 02 Legacy High Flow Cat Extra 02 Bung
