[1986Silverado]

There will be no noticeable difference how the vehicle runs, but I doubt it will pass emissions. I had an 86 Buick T-type and removed my egr system and did not notice any difference in how it ran. I had someone make me a aluminum plate and used a stock gasket and bolted it in place of the egr valve. Some say without the egr valve you will have low end knock, pinging actually, not a engine knock as in bad bearings and such.