Increasing the bass of a stock exhaust on a Royal Enfield Thunderbird X can be challenging, as it is primarily determined by the design and construction of the exhaust system. However, there are a few things you can try to enhance the exhaust note and potentially increase the bass:
Aftermarket Exhaust: Consider installing an aftermarket exhaust system specifically designed to produce a deeper and louder sound. There are various options available in the market that can provide a more bass-heavy exhaust note. Research and choose an exhaust system that fits your preferences and meets the legal requirements in your area.
Remove Baffles: Some stock exhaust systems have removable baffles or restrictor plates inside the muffler. Removing these baffles can increase the airflow and result in a louder and deeper exhaust tone. However, keep in mind that modifying the exhaust system may affect the warranty and local regulations, so make sure to check with your local authorities and the manufacturer before making any changes.
Tuning: Consider getting your motorcycle tuned by a professional. Proper tuning can optimize the fuel-air mixture and ignition timing, potentially improving the overall performance and sound of the exhaust. A skilled mechanic or a reputable tuning shop can assist you with this process.
Sound Inserts: Some aftermarket exhaust manufacturers offer sound inserts or baffles that can be added to the stock exhaust. These inserts are designed to enhance the exhaust note and may provide a deeper bass sound. Again, research and choose a suitable product that is compatible with your specific motorcycle model.
Remember that modifying the exhaust system may have legal implications, affect warranty coverage, and potentially disturb noise regulations in your area. It's essential to research local laws and regulations, consult with professionals, and consider the impact of any modifications before proceeding.