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Has anybody bought that pipe kit off of ebay that supposedly increases mpg.I guess you cut out your original Y-pipe and weld this one in.The new one is all the same diameter vs the original tapers down to a smaller one and then back up.
I installed one 6 months ago or so. My cruising around mpg went froim 11.9 to just over 14. With a good tailwind I got 12.9 mpg at 72 mph headed down to dallas.
