General Motors 12609823 Exhaust Manifold Review

This exhaust manifold brought an impressive horsepower boost to my car's PERFORMANCE. The sturdy construction and easy installation added to its overall value. The only downside is the slight increase in noise, but it's hardly noticeable with the improved performance. Overall a great addition to any automotive enthusiast's collection of upgrades..

Bolted directly to my sons POS 2010 GMC Terrain. Let's see if this poorly designed wishbone exhaust manifold lasts longer than the previous one. LOLOLOL. Note: To weld the nut to the bottom bracket, tighten the bolt after applying PB Blaster or Kroil. (Maybe one stinky SS bolt, where it's obviously needed, is too much, GM?) Tip 2: Stick the saw out of the engine bay, pull the door or something off the horse into the engine bay, put the foam pad on the Door, Lie on your stomach and work…