TVS1900 supercharger kit from Magnuson. Compatible with 5.3L engines for Tahoe (and 4.8L), Yukon (and 4.8L), Suburban, and Avalanche from model year 2011 to 2014. Provides up to 6psi boost with the factory pulley (3.7). Daily use without racing, in good condition. Includes intercooler and a suitable Gates belt (new). Installation catalog is available. Missing one mounting bolt, and the plastic air connectors may need updating. Price: 12,000 Saudi Riyals. SCT tuning device in excellent condition. Includes factory tune for 2013 Tahoe 5.3L Flex Fuel. And a tune for the car itself with the supercharger kit. Price: 900 Saudi Riyals. Snow Performance Stage 2 Methanol Kit, in acceptable condition, needs nozzle maintenance. The pump is working. Suitable for those who want to use it for spare parts. Price: 500 Saudi Riyals.