Duramax LML Best Tune or no Tune?
Sniffers on our on ramps? I doubt it, not saying they aren't there in heavy travelled areas (L.A.) but I don't see how they can detect emissions from ANY vehicle from the shoulder as it would be too far away.
Lots of times you can see a box on the shoulder with a sensor of some sort stretched across the road. Those just count vehicles.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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