it all depends on what type of sound your searching for. If you want that deeper/old school V8 tone? I would highly recommend going with the shorty H pipe, if on the other hand, you prefer a more refined European V8 sound? a shorty X pipe is your better choice. Just be aware that an X pipe will provide a slightly higher exhaust note and somewhat of a tinny sound, over an H pipe. Anyhow, just saying