ratrod8771 Posted June 14, 2017 Report Share Posted June 14, 2017 Can we run any system we want as I understand rules it was any header with 3 inch collector but noticed a car with multiple wins has exhaust system any rules on what we can do upgrading car trying to avoid dq Link to comment Share on other sites More sharing options...
TheCloser Posted June 14, 2017 Report Share Posted June 14, 2017 Here is a screenshot of the exhaust rules off of the South Texas Speedway website. Also there are phone numbers for Ted Hamm and Kimsey Davis if you have any further questions. Link to comment Share on other sites More sharing options...
cperry115 Posted June 14, 2017 Report Share Posted June 14, 2017 This is what IMCA has listed Link to comment Share on other sites More sharing options...
ratrod8771 Posted June 14, 2017 Author Report Share Posted June 14, 2017 So no exhaust systems allowed can't do much with 19 inches total collector and exhaust Link to comment Share on other sites More sharing options...
cperry115 Posted June 14, 2017 Report Share Posted June 14, 2017 I-37,STS,Edna all allow any 1-5/8"tube header with a 3" collector does not have to be a listed header from above. you can put a turn down ,turn up,turn out I think as long as you have a 1-5/8x3 collector you should be fine. Link to comment Share on other sites More sharing options...
ratrod8771 Posted June 14, 2017 Author Report Share Posted June 14, 2017 I am looking to run exhaust pipes to rear axle Link to comment Share on other sites More sharing options...
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