Review on MAS Compatible Silverado Trailblazer Avalanche by Brian Samaiyar

This seemed like a great bundle deal at a really good price. However, the first coil pack failed less than a week after installation. They sent me two spare spools. The second package of coils failed after a few days. So I contacted the seller and he sent me two more packs of coils. Now I'm getting error code "P0300 Random Multiple Cylinder Misfires". I have replaced half of the coil packs and am still having problems. The seller offers 30 days money back and one year replacement. Save money and buy a branded set. Unless you really like it when your engine runs rough and its cylinders fall off.