How to find the right Powersports Headers & Mid-Pipes AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Powersports Headers & Mid-Pipes
- Compatibility with your muffler
- Confirm the header or mid-pipe outlet matches your muffler's inlet diameter and joint style, or buy both from the same maker. Mixing brands often leaves a leaky slip joint.
- Catalyst deletion
- Check whether the mid-pipe or link pipe removes the catalyst, and whether that is legal for your use. Cat-delete pipes are typically sold for closed-course use and can fail emissions checks.
- Sensor bungs
- Make sure the O2 sensor bungs are in the stock locations or that the maker provides plugs or a tuning solution. Missing or moved sensors trigger error codes and affect fueling.
- Material and wall thickness
- Stainless for durability and value, titanium for weight savings. Header pipes take the most heat and vibration in the system.
- Tuning
- Plan a fuel tune when replacing headers on fuel-injected engines. Header changes affect airflow more than a muffler swap does.
Brands that matter
- Yoshimura: Headers and mid-pipes for Japanese street and off-road bikes.
- Akrapovič: Link pipes and headers matched to its slip-ons.
- Two Brothers Racing: Headers and mid-pipes for sport bikes and UTVs.
- FMF Racing: Headers for off-road four-strokes and expansion chambers for two-strokes.
- Vance & Hines: Head pipes for V-twin cruisers.
What to avoid
- Header wrap on stainless or titanium headers you want to keep long-term, since it traps moisture.
- Mid-pipes sold as fitting many models without a listing for your specific year.
- Reusing old header gaskets during installation.
Questions
What is a link pipe or mid-pipe for?
It connects the stock headers to a slip-on muffler, and on many bikes it is also where the catalyst is removed or kept.