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  1. X-pipe or H-pipe for my 2006 Mustang GT? already have SLP Loudmouths

    2005-2010 Mustang Talk
    I need some info on what sounds good on SLP Loudmouth. I do NOT want cats(too expensive :)). I would also like to pair the x pipe with a pair of headers. Which brings me to another question.... long tube or short headers? is there a power difference? Thanks.