TEAM UXC RACING 2017 GNCC ROUNDS 1 AND 2 RACE REPORTMonday, March 20, 2017The winter layover and long nights ...
Big Gun Releases New Fully Stainless Exhaust Lineup Over a year of testing has culminated into the release of ...
The guys over at UTVonDemand put together an awesome article and video showing off their Polaris ACE 570 build. ...
Check out this video recap of how Rhys Millen Racing conquered the 2016 Baja 1000 UTV overall win!
Rhys Millen Racing Conquers the Baja 1000Rhys Millen adds Baja 1000-champion to his illustrious resume CORONA, Calif. Nov 28, ...
Kaden Danbury, the Championship Kid CORONA, Calif. Nov 18, 2016 – Big Gun-sponsored mini-ripper, Kaden Danbury, has wrapped up ...
A New Website Built With You in Mind Our new website, biggunexhaust.com, is now live! We’ve worked tirelessly to ...
Check out this article and install video by quadiste.net of our EXO Series slip on exhaust on a 2016 Can ...
Polaris hit a homerun once again with the introduction of the 2016 Polaris General 1000. General filled the gap between the ...
Not sure which exhaust is right for you
Check out our
Proper Tuning F.A.Q.
What does proper tuning entail then?
When we refer to proper tuning, we are referring to adding enough fuel to compensate for the added airflow. In doing so, this will allow you to eliminate the lean issue and bring your motor back up to having a proper air/fuel mixture.
Why should I properly tune?
When you put an aftermarket higher-flowing exhaust on a vehicle, it throws off the current air/fuel mixture that the vehicle is setup from the factory with.
This is the first time I have bought an aftermarket exhaust, do I need to do or get anything else?
Yes, you need to properly tune your motor.
How do I properly remap?
By using a fuel controller (aka programmer), you can remap and tune your motor.
I have a fuel injected vehicle, what do I need to do?
You need to properly remap your fuel system in order to add fuel to compensate for the added airflow of the new exhaus
Do I have to remap/tune even if I’m just buying a slip on exhaust and not a full system?
Yes. The biggest increase of airflow will come from the less-restrictive aftermarket muffler(s) and not the head pipe(s). Given that, your motor will still run lean and requires proper tuning.