XJS 3.6 Litre Induction


The QuickCat Jaguar XJS High Performance Air Intake System

Growler Air Intake installed

QuickCat installed on USA Drivers (left) side

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The QuickCat high performance air intake kit, designed and manufactured by V12 Performance, is a low cost, easy to install performance accessory that really works. The highly restrictive original XJS V12 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 quality, all aluminum QuickCat kit (also available in stainless steel and powder coat finishes) features a pair of 2.5-inch diameter intake tubes to match the size of the intake manifolds and two K&N high flow air filters that allow your XJS V-12 to breathe all of the air it needs to be its best. It also includes all necessary mounting hardware, hoses and illustrated installation instructions.

With the QuickCat you’ll experience quite noticeable performance gains (15-20 horsepower) at higher revs (highway speeds and kickdown acceleration) plus a great “sporting note” that adds a real sports car sound to your XJS V12.

No changes to the car are necessary, including emissions equipment, 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 V12 Performance QuickCat kit with K&N high flow air filters, for either Lucas (up to VIN# 157115) and Marelli (VIN# 157116-on) systems, is available in a variety of finishes (see examples here) and includes filters and intakes for both sides, all necessary clamps, hoses, grommets, bushings and fittings.

Hundreds of XJS owners in 49 countries worldwide currently enjoy the benefits of the QuickCat air intake system. Despite our 30 day, no questions, money back guarantee, we have yet to have a QuickCat system returned by an XJS driver disappointed with either the quality or results. See pricing and finishes

Order Growler Jaguar XJS V12 air intake kit