Provides an additional 9 horsepower while trimming 13 lb on trail models and 14.5 lb on mountain modelsThis pipe set has been SLP tested and passed the SAE J-2567 stationary sound test below 88 decibelsFinished with ceramic coating which not only looks great, but also reduces radiant heat emissions by as much as 40%, resulting in cooler under hood temperaturesNo fueling changes required!Era 2014 Silencing TechnologyThe installation of this pipe set is made easier with two of SLP's Extension Spring Hooks (SLP Parts #20-210 and 20-89)Ultra Black Silicone Sealer (SLP Part #090-24) is required for installationSome clutching changes recommendedEU: Provides an additional 9 horsepower while trimming 5,90 kg on trail models and 6,58 kg on mountain models.