The Engine Masters series is back to help shed some light upon something you've wondered when it comes to exhaust pipes and mufflers: should you go 2.5 inches or 3?
![](https://altdriver.com/wp-content/uploads/sites/2/2016/05/screen-shot-2017-06-22-at-9-14-37-pm.png?w=1056)
The Engine Masters series is back to help shed some light upon something you've wondered when it comes to exhaust pipes and mufflers: should you go 2.5 inches or 3?