[CNB]

Well, ATP's is cheaper, and is a 3" diameter, just like CP-E's. Also, if you plan a turbo upgrade, ATP's will work on stock, ATP, or CP-E turbos, while the CP-E only works on theirs (and stock). In this category, ATP's seems like a better choice. However, if you decide you want to compromise flow and power by getting cats, CP-E is your only choice.[/b]

Does the CP-E downpipe come with a higher flowing, higher quality cat then the ATP downpipe?

 

[CNB]

ATP does not offer a cat with their downpipe.[/b]

Thanks.