Jeep Grand Cherokee Jr air Intakes ty). The Inline 6 engine was also updated in 1999. 10 horsepower (7.5 kW) was added by redesigning the intake manifold.While other Jeep vehicles used the Mopar 5 x 4.5 bolt circle, this was the first Jeep following the 1987 Chrysler buyout to receive a wider bolt pattern — 5 x 5. The 5 x 5 bolt pattern (also 5 x 127 mm), although common to GM rear wheel drive vehicles and light duty trucks/vans, has spread beyond its use with GM (and Ford with their 1973 to 1978 LTDs and Lincolns). Chrysler first used the 5 x 5 pattern on full-size half-ton Dodge Ram pickups and Dodge Ramcharger SUVs in 1986.A

Features for your Jeep Grand Cherokee

• The Airaid Jr. Air Intake System boosts horsepower and mileage for less than other intake kits
• Custom-designed for your specific year, make and model
• Airaid Jr. Air Intake Systems bring cooler air to your engine by retaining your sealed factory airbox
• Replaces your stock air filter with an Airaid Premium Direct-Fit Filter that's washable, reusable, and guaranteed to last a lifetime
• Airaid Jr. Air Intake Systems get the air flowing faster with the smooth custom Airaid Intake Tube

Airaid Jr air Intakes The redesigned WJ 1999 Grand Cherokee shared just 127 parts with its predecessor. . The spare tire was relocated from the side of the cargo compartment to under the floor to great relief of owners. The two heavy pushrod V8 engines were replaced by chrysler's first clean sheet V8 since the 1960s (SOHC aluminium heads, plastic intake), Chrysler's then-new PowerTech. Although this engine produced less torque than both previous V8s, it was lighter and got much better fuel economy and provided similar on road performance figures (the 23 gallon fuel tank was replaced with one of a 20.5 gallon capaci