As far as I know the other Xchambers work great but the SBP is versatile as to how you can mount and tune it. Just the thing with the SBP is you will need to replace the silicone tubes or weld the pipes in place so they don't leak. The silicone tubes work great for a while then start leaking and becomes a major headache so in most cases it just ends up being welded. Look around and you'll find more on them in the Intake and Exhaust section.