KAX Cold Air Intake Kit Compatible with 1999-2004 Jeep Grand Cherokee

In this review of the KAX Cold Air Intake Kit for the 1999-2004 Jeep Grand Cherokee 4.7L V8, the bottom line is straightforward: this kit is for owners who want a simple bolt-on route to crisper throttle response and a deeper intake note without heavy modification. Tested primarily for everyday driving and spirited street use, the kit delivers measurable gains in midrange power and a pronounced sound change. Installation is meant to be quick, and a five year warranty gives some assurance, but fit and finish issues were reported by a minority of users.

Key Features

• Vehicle fitment: Designed specifically for the 1999-2004 Jeep Grand Cherokee 4.7L V8 so buyers get a kit tailored to that engine and chassis layout.
• Performance gain: The kit helps the engine draw colder air for improved throttle response and an expected increase in horsepower and torque in typical street conditions.
• Intake construction: The intake pipe is made from lightweight T-304 aluminum with a polished finish to allow maximum airflow through the stock manifold system.
• Sound upgrade: The assembly produces a deeper, sportier intake sound that is noticeable under acceleration and during mid RPM work.
• Installation: No extra parts or drilling are required, so installation can be completed quickly with common hand tools for most DIY mechanics.
• Warranty support: Backed by a five year warranty, offering repair or replacement support for quality issues during normal use.

Who It's For

The KAX Cold Air Intake Kit is best for Jeep Grand Cherokee owners who want a straightforward, mostly bolt-on upgrade to improve throttle response and add a sportier induction sound. It suits drivers who prioritize midrange power and audible feedback from the engine without extensive modification.

It is not the best choice for someone seeking a fully guaranteed perfect fit in every unit or for owners who require detailed installation documentation; a few users reported fitment variation and missing box mounting instructions. Professionals or those wanting a sealed cold air box solution may also prefer more expensive, OEM-matched alternatives.

Pros & Cons

Pros

• Improves throttle response and can yield an 8-10% increase in horsepower and 6-8% torque under typical conditions.
• Lightweight T-304 aluminum pipe improves airflow and gives a polished appearance under the hood.
• Produces an intense, deep sporty sound that many drivers appreciate during acceleration.
• Backed by a five year warranty that reduces purchase risk.

Cons

• Fitment and material quality received mixed feedback, with some users reporting imperfect fit or perceived cheap manufacturing.
• Installation notes are minimal for the air box mounting, which could frustrate less experienced installers.

Specifications

Vehicle Fitment	1999-2004 Jeep Grand Cherokee 4.7L V8
Intake Material	T-304 aluminum (lightweight, polished)
Expected Power Gain	Approx. 8-10% horsepower increase
Expected Torque Gain	Approx. 6-8% torque increase
Installation	No drilling or extra parts required
Warranty	5 years

Our Verdict

The KAX intake is a good-value upgrade for Grand Cherokee 4.7L owners who want a noticeable improvement in throttle feel and a sportier induction sound without major modification. It delivers strong airflow benefits thanks to the T-304 aluminum pipe and comes with a reassuring five year warranty; however, buyers should accept some variability in fit and be prepared to address minor installation details themselves.

Frequently Asked Questions

Will this kit increase horsepower?
Yes, the manufacturer states typical gains of about 8-10% in horsepower and 6-8% in torque under normal driving conditions.

Is installation difficult?
Installation is designed to be quick and requires no drilling or extra parts, but some users reported limited instructions for the air box mounting so basic mechanical experience helps.

Does the kit come with a warranty?
Yes, the product includes a five year warranty for quality issues under normal use.