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2008 Mazdaspeed 3 240k km or roughly 150k miles DTC's: P2187, P2006, P2009, P0401 Modifications: COBB SRI, COBB TIP, CPE HPFP, EGR DELETE, VTCS DELETE. Stock Exhaust Tune: Stock tune, Stage 0, Stage 1+ sf ots Concern: +20 LTFT at idle, 14.7 AFR at idle but on acceleration AFR's stay around...