AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge 2007-freightliner-sprinter-2500-base-esi1562195 Alternate muffler with Notched necks

Alternate muffler with Notched necks is 400500

The famous straight-through

This 3" diameter high flow Cat-Back(tm) system was designed specifically for the Mustang GT and has Active Exhaust Valves

ACL Toyota 4 2R 1490cc / 12R/4R 1587cc Aluglide 0

AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge 2007-freightliner-sprinter-2500-base-esi1562195 Alternate muffler with Notched necksAccurate AFR data is critical when tuning an engine. Running rich (very low air fuel ratio, excessive fuel) can cause a loss in power, while running too lean (very high air fuel ratio, not enough fuel) may result in serious engine damage. Using a wideband air fuel controller during the tuning process allows you to monitor AFR and adjust tuning parameters to optimize them for maximum power and efficiency. AEM has a comprehensive line of highly