Header comment on the 6.1L engine
I read on one of the chat sessions with the SRT team:
Question: There have been quite a few controversial posts on different forums lately concerning aftermarket headers for the 6.1 engine. There have been claims of increases in the range of 20-30hp. What would you guys say is the max possible attainable HP, if anything, with aftermarket headers vs the stock headers? My contention is that there really is no room for improvement in replacing stock headers alone. But the argument is that the factory had to take cost considerations into play and therefore may have left some HP on the table.
Answer: That sounds extremely unlikely. The stock headers did not leave much room for gains in HP. We would put it more likely in the realm of 2 - 5 hp.
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