Lux_Great Posted May 31, 2014 Share Posted May 31, 2014 Hi So the GB270 is soon heading to my driveway. Saying good bye to my excellent Legacy Spec B after 7-years ownership. On the Spec B I fitted a Pipercross air filter. It made a difference. Any air filter recommendations from 2006-7 WRX owners ? Cheers Quote Link to comment Share on other sites More sharing options...
BoozyDave Posted June 1, 2014 Share Posted June 1, 2014 I use 'green' air filters, they are decent price and performance. They always get good reviews too Quote Link to comment Share on other sites More sharing options...
Gambit Posted June 1, 2014 Share Posted June 1, 2014 Cosworth ;) Quote Link to comment Share on other sites More sharing options...
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