Making the Aztek Handle

Big power means nothing if you can’t control it. The Aztek was built as a crossover, not a sports SUV, so this section focuses on suspension, brakes, and tuning upgrades.

ECU & Tuning

• Budget: Mail-order tune or basic reflash (~$200–$400). Unlocks a bit more power and fuel economy.

• Advanced: Dyno tune after an engine swap or forced induction (~$500–$1,000). Essential for reliability.

Suspension Upgrades

• Budget Route: Performance springs or coilover sleeves ($300–$600). Stiffens ride, lowers stance.

• Mid-Range: Full coilover kit ($800–$1,500). Provides adjustable ride height and damping.

• Extreme: Custom suspension setups (air suspension for show builds, race coilovers for track use). $2,500+.

Braking Power

• Stock brakes are serviceable, but not for high power.

• Budget: Performance pads + slotted rotors ($250–$500).

• Mid-Range: Big brake kits from compatible GM SUVs ($800–$1,200).

• Extreme: Wilwood/Brembo racing kits ($2,500+).

Handling

• Sway bars, polyurethane bushings, and chassis bracing make a night-and-day difference in cornering. ($300–$1,000).

A tuned suspension makes even daily driving more engaging, while upgraded brakes provide the confidence needed for spirited driving or track days.