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Old 12-27-2012, 11:24 PM
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For towing a trailor ,the 4 tube headers probably hurt more then they help ,i think you need cast iron like sanderson or factory 2-1/5 mid sixtys corvette , as for exaust pipes ,you can run 2 " since exaust Cools and reduces in volume as it exits ,if you notice medium and heavy duty trucks ,larger at front than rear to keep torque high at lower rpm ,also heat wrap on front pipes like D E I or similar will help.
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