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You will need SPC's punch tool #74920 or a rotary file like #85130 to slot the factory bolt holes
The Dyno tells all: real-world gains of +13 hp and +12 lb-ft of torque
DPF/CAT-Delete
To further prevent any blow-by from escaping
2014-2016 GMC Sierra 1500 Base 4
Kooks RAM TRX 1 7/8in x 3in Long Tube Headers 3in x OEM H.O. Green Connections - 3521H440 Gauges & Pods You will need SPC's punchKooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud
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