Q. Can we remap ecu. for Suzuki gixxer 250 or what can i do for more power.... ..but still I can beat duke 250 in highend?

There are multiple performance enhancers available in the market such as upgraded ECU, performance exhaust, air filters, etc. However, the brand does not recommend installing aftermarket accessories in your bike as it damages the engine's life and overall performance. As for the comparison, the KTM 250 Duke gets a 248.8cc single-cylinder liquid-cooled DOHC engine that generates 30PS at 9000rpm and 24Nm at 7500rpm, whereas the Gixxer 250 employs a 249cc single-cylinder engine that puts out 26.5PS and 22.2Nm in its BS6 guise. For more details, you may connect with the nearest authorized service center in your city. Follow the link and select your desired city for service centers.

You can increase your power of Suzuki gixxer 250 by increasing Torque Power. but do it from the showroom only.