Contact Big Bun Exhaust
Contact
- hello@biggunexhaust.com
- Tel: (714) 970-0423
- Fax: (714) 970 0542
Opening Hours
- Monday - Friday:
- 9:00am - 4:30pm PST
- Saturday - Sunday
- Closed
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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.
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.
Yes, you need to properly tune your motor.
By using a fuel controller (aka programmer), you can remap and tune your motor.
You need to properly remap your fuel system in order to add fuel to compensate for the added airflow of the new exhaust.
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.