I have a 2004 Svt Cobra with Mac Longtube headers, Mac offroad-prochamber, and Magnaflow Catback. I would like to change out the Mid Pipe because I dont like the Pro-chamber too much. I wanted to know what sounded best with the Mac Longtube headers and Magnaflow Catback an offroad H or X Pipe and what brand would sound the best, and fit my Mac Longtube Headers. Thanks.