The first thing most Suzuki owners change is the exhaust system. The stock dual mufflers and incredibly heavy and do such a great job of reducing noise that they also reduce power. Slip on systems can easily drop 30 pounds from the Gsxr and allow easier stopping and acceleration. Full systems can drop 40 pounds and increase horsepower by 15+! Brock's Performance is our most popular exhaust for the Suzuki Gsxr and the Alien Head muffler design makes great power with great looks.