The QuickCat™ Air Intake System
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Left side
The QuickCat™ high performance air intake kit from FasterJags™ is a high quality, low cost, easy to install performance accessory that really works. The very restrictive XJS factory air boxes are equipped with 1.5-inch diameter intake horns and dense air filters that significantly limit the amount of air available to the engine, especially at higher revs. To solve this problem, the rugged, all aluminum QuickCat™ kit (also available in stainless steel) features 2.5-inch intake tubes with K&N high flow air filters that allow your XJS V-12 to breathe all of the air it needs to be its best. You’ll experience quite noticeable performance gains at higher revs (highway speeds and kickdown acceleration) with a pleasing but refined “sporting note” that adds a real sports car sound to your XJS.
No changes to the car are necessary and the factory air boxes can be easily refitted if necessary. Installation is a simple bolt-on, 30 to 45 minute operation. The only tools needed are a 13mm socket or box wrench/spanner, Allen wrench and a screwdriver.
The FasterJags™ QuickCat™ kit with K&N high flow air filters, for either Lucas and Marelli systems, is available in a variety of finishes and includes filters and intakes for both sides, all necessary clamps, hoses, grommets, bushings and fittings.