HFCV reduce tailpipe emissions of greenhouse gases. Tailpipes were now turned down as the new bumper cover eliminated the tailpipe extensions. Catalytic converters have proven to be reliable and effective in reducing noxious tailpipe emissions. The engine exhaust is turned back to the longitudinal axis by a curved composite tailpipe. The final section in the path of the exhaust gases is the tailpipe. They are used for collector, tubing, muffler, catalytic converter, tailpipe. Tailpipe emissions also pose a more direct harm to humans. The Big Three sued California Governor Arnold Schwarzenegger to prevent a tailpipe emissions requirement. This is referred to as the long tailpipe of electric vehicles. This fact has been referred to as the long tailpipe of plug-in electric vehicles. There are V12 badges on the C-pillars, and a unique tailpipe design at the rear. The answer turns out to be a baby rattle lodged in the car's tailpipe. The extended tailpipe gave greater protection against heat-seeking surface-to-air missiles. Later modifications included the avionics hump and an extended tailpipe, implemented in Israel by IAI. A 48-inch tailpipe extension was added and new, target-style, thrust reversers were incorporated.