It won't make much of a difference how close they are to the cats. Are you putting high flow cats on? If so, I doubt you'll have any trouble. I have a BBK off road H pipe with MIL eliminators and no check engine light. I bought them through Need 4 Speed in California for about 45 dollars. Took 2 minutes to strap in. Well worth the money to avoid the headaches.
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1997 Cobra (Black on black), C+L 80mm MAF, K+N filter, Pro 5.0 shifter, BBK Springs, Taylor Wires, 2 Chamber Flows, ASP Pulleys, BBK off road H pipe.
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