Collector pipe Fits: KTM 690 DUKE 690 DUKE R 2012 - 2019 - TIG welded by hand for smooth internal welds, optimal internal gas flow and power gains. No internal restrictions. - Compatible with original down pipe, KTM silencer and any fitted to the OEM system.. - Pipework Material: 304 Grade Stainless Steel. - Lightweight as it only weighs 800 grams / 1.8lbs. - OEM compatible, same connections as the OEM original for easy installation. - No re-jetting or modifications required. - 2 Year Unlimited Black Widow Warranty.