2006-2011 Chevy HHR Underhood Performance

The Zex Nitrous System, also called nitrous oxide, NOS, and various other similar terms, contains patented technology and uses bottle pressu ...more >>

K&Ns AirCharger Off-Road & Racing Performance Kits , or simply AirCharger for short, are designed to be less restrictive ...more >>

A sister product to the 57 Series FIPK, the 63 Series Intake Kits or AirCharger Intakes are built for many different vehicles and represent ...more >>

AIRAID Filter Company has figured out the secret to improved throttle response in the HHR while also gaining more horsepower and torque. AIR ...more >>

Dress up your engine compartment with our 304 brushed stainless firewall w/cap. Covers the rear firewall in your engine bay and includes t ...more >>

Add style to your engine compartment with our polished stainless steel engine shroud and cap kit. This kit includes the stainless center ...more >>

Protect and beautify your radiator with this polished top radiator support cap. Crafted from 304 stainless steel, this cap is guaranteed to ...more >>

Dramatically enhance the look of your vehicle while keeping debris away from your engine with the Polished Stainless Wiper Cowl. Crafted fr ...more >>

If you are no longer using factory spark plug cables and the factory heat shields, and you have a supercharged engine or other high-heat pro ...more >>

Enhance your engine compartment with the Polished Stainless Water Tank Cover. Made of super high polished 304 stainless steel, this beautifu ...more >>

The Battery Tender PLUS is a 1.25 amp battery charger designed to fully charge a battery and maintain it at proper storage voltage without t ...more >>

Spruce up the underside of your hood with this stainless upper hood cap kit. Crafted from 304 stainless steel, this 3-piece kit is guar ...more >>

Spruce up your engine compartment using the Polished Stainless Fuse Box/BCM Cover Plates. Made of super high polished 304 stainless steel, t ...more >>

K&N Performance Gold Oil Filters for automotive applications have been constructed from the ground up to satisfy the high performance ne ...more >>

K&N offers a six-step maintenance system that's designed to recharge any K&N Filtercharger Air Filter. The kit includes Filtercharge ...more >>

APPLICATION LIST 2006-2011 Chevy HHR (2.2L and 2.4L engines) ...more >>

The X4 Power Flash arrives pre-loaded with DYNO Proven tune files that INCREASE HORSEPOWER and TORQUE! Programming your vehicle with one of ...more >>