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     Thunder Mfg. is dedicated to the development of high quality performance products. All of our performance products are rigorously tested in our dyno room to ensure maximum performance. This allows you, the customer, the confidence to know you are receiving the best possible performance you can get from your bike.

     During our development of our many adaptors that fit several models of bikes we have found the need to design a couple of different mounting styles (Type A, B). This specifies which style of air kit you will need to fit your bike. Please check the list below to find out which style your bike requires. Some bikes do not require an adaptor as it is built into the air kit and they are also noted below. You can use this information as you surf our web to ensure you select the proper air kit.

     We have also designed our “Custom” line of air kits to allow you to personalize your air kits style to your taste! All air kits followed by a “C” or labeled as custom require the purchase of an insert sold separately. This allows you to change the style of your bike as you wish at a reasonable cost. All of our Custom air kits and Kury Akyn’s Standard Hypercharger with the trap door may use any insert you wish.

     Thunder Mfg. is constantly adding new products to our line-up and invite you to check out our website regularly to see what’s new and exciting. Also if you have an idea for a product we currently do not have please feel free to contact us. Thank you for your interest in our products and we hope you have an excellent riding experience.

          Thank you,

                    Thunder Mfg. Staff

Thunder Mfg. has teamed with some of the best companies in the industry to bring quality long lasting products!

You may contact us at if you should have any questions or you would like to make a purchase.