Lol, my 5.3 with headers, tune and cai put down 236 on a dynojetOriginally Posted by pl4yboy
Lol, my 5.3 with headers, tune and cai put down 236 on a dynojet
Run your motor, not your mouth..
04 ECSB 5.3 Sierra: 14.6@95
Pacesetter Headers, Intake, Tune
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