The Indian Patent Office granted Bajaj Auto a patent for its ExhausTEC invention vide Patent no 231498 dated 5th March 2009. This Grant was published in Patent Gazette dated 27 March 2009. The unique invention named ExhausTEC significantly improves low range / mid range torque in a single cylinder four stroke engine, employing a chamber of predetermined volume attached to the exhaust pipe. Bajaj has employed this innovation on its motorcycles since August 2004 in various models. Bajaj's patented DTSi twin spark technology and ExhausTEC together deliver an unbeatable fuel efficiency Ã¢â‚¬â€œ performance combination to the customers.