[Ralph Greene]

I have the Magnaflow X/cats and Magnaflow catback. It's not overly loud at cruising RPM's, the 2 were designed by Magnaflow to work together, and I noticed no low RPM power loss. But my tune is good.


While I appreciate tach9 and crew's hard work testing the catbacks, I don't think it proved much by adding different catbacks to a car with CAI and not tuning for each. It did prove, to me anyway, that all the catbacks are similar in the power they make, and your decision should be based on factors other than reported power gains or losses. I believe Tach9 has said the same thing.