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Rear location
Tech Springs are an excellent step towards suspension tuning
AEM's X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge (PN 30-0334) provides tuners who are using piggyback tuning modules or open source software with the ability to view AFR through the factory CAN-bus stream that is output by the factory ECU
This has the advantage that the change in ride quality is kept minimal when the height is adjusted
This coupled with our Venturi Filter stack for smooth flow results in an immediate gain across the entire RPM range of 14-20hp
Perrin Cold Air Intake (Black) - Subaru STI VA Prova Rear locationIncrease horsepower and style under your hood. PERRIN Intake Systems use proper MAF alignment and plumbing size, both of which are crucial to maintain proper air fuel ratios and prevent check engine lights that plague competitors. CARB Approved! This intake will also work for: 2008 2014 WRX 2008 2017 STI
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