Rb Wedge Dyno Tti Headers
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The smaller tti headers with 1 7⁄8 tubes and 3-inch collectors improved the peak torque by 32 lb-ft. Ironically, torque with the 2 1⁄4-inch tubes peaked at 3,900 rpm, while the 1 7⁄8-inch tubes peaked at 4,700 rpm. Still, at 3,900 and 4,700 rpm, the smaller pipes boasted 17 and 51 more lb-ft of torque, respectively. The 3,500 to 6,000-rpm average horsepower and torque gains were 29 hp and 31 lb-ft. View Related Article
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