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Adjustable Height Range: 2 - 4 Inches

Front Spring Rate: 8kg/mm(448 lbs/in).

Rear Spring Rate: 6kg/mm( 336 lbs/in).

Front Spring Length: 185mm & Rear Spring Length: 162mm.

EVIL ENERGY Super 10 Series: Unleash the Ultimate Aggressive Sound!

• Extreme Performance: Super 10 Series mufflers deliver the loudest and most aggressive sound, perfect for off-highway use.
• Durability: Constructed from aluminized steel and fully MIG welded, ensuring maximum strength and reliability.
• Versatile Design: Available in multiple sizes with a center inlet and dual outlets, offering maximum flow and customization.

Upgrade your exhaust with EVIL ENERGY’s Super 10 Series and experience unmatched power and sound!

Next-Gen Annular Flow Technology

• Annular flow primary boosters (8 orifices) – improved fuel atomization, no flat spots during throttle transitions.
• 650 CFM airflow + adjustable air valve secondaries – smooth power delivery for small-block/big-block engines.
• 1.19-inch venturi – enhances air velocity for sharper throttle response.

Precision Calibration & Tuning Support

• Factory-calibrated: #101/#98 jets, 0.070x0.037 inch metering rods, 5" Hg step-up spring.
• Timed & full vacuum ports – supports ignition advance calibration for optimized performance.
• 100% wet-flow tested – ready to install and run out of the box.

Universal Compatibility & Durability

• Square-bore flange – fits dual-plane/single-plane intake manifolds (GM/Ford/Chrysler).
• Ford AOD transmission compatible (with appropriate bracket, sold separately).
• High-quality aluminum construction (non-remanufactured) – corrosion-resistant, lightweight.

Installation & Application Notes

• Single fuel inlet for simplified installation; requires carburetor stud kit (sold separately).
• Requires new fuel filter (between pump and carburetor) for warranty/performance.
• Restrictions: No marine use; gasoline only (no alcohol/E85); adapter may be needed for factory intakes.

EVIL ENERGY Super 10 Series: Unleash the Beast!

• Extreme Performance: Super 10 Series mufflers deliver the loudest, most aggressive sound for off-highway use.
• Durable Construction: Made from Aluminized steel, fully MIG welded for maximum durability.
• Offset Design: Offset inlet and outlet for a unique, powerful exhaust flow.

Upgrade your ride with EVIL ENERGY’s Super 10 Series for unmatched power and soun

EVIL ENERGY Exhaust Manifold: Boost Your Jeep's Power!

Upgrade your 91-03 Jeep, 91-01 Wrangler, 93-01 Cherokee, or 91-92 Grand Cherokee with EVIL ENERGY's high-performance exhaust manifold. Our stainless steel manifold enhances horsepower and exhaust sound, providing a smoother ride on and off the track. With a mirror-polish finish and ISO9001:2000 certification, it's built for durability and performance. Choose EVIL ENERGY for a powerful upgrade.

EVIL ENERGY: Power & Performance for Your Ride!

• High-Performance: Boost horsepower and torque with our premium mufflers.
• Versatile Fit: Perfect for street cars, trucks, and sports vehicles.
• Balanced Sound: Moderate exhaust note for a powerful yet refined experience.
• Durable: Aluminized steel ensures long-lasting performance.
• Easy Install: Simple setup for hassle-free upgrades.

Upgrade with EVIL ENERGY for a powerful and stylish exhaust!

Compatibility: Exclusively for 2007-2011 Jeep Wrangler JK 3.8L engines.

Installation: 40-minute setup with basic tools; no cutting/drilling; includes step-by-step instructions.

Performance: Increases horsepower and torque; improves acceleration, throttle response, and hill-climbing capability.

Air Filtration: 98% efficient washable cotton filter + pre-filter; reusable, easy to maintain.

Intake Design: Large aluminum tube (smooth bends, low restriction) + steel heat shield (blocks engine heat for cooler air).

Sound: Aggressive tone under acceleration; quiet at cruising speeds.

Fitment

• Fit For 2001-2005 Year Chevrolet Silverado/GMC Sierra 2500/3500 HD (6.6L Duramax LB7/LLY)

📦Package：

• EVIL ENERGY Radiator
• EVIL ENERGY Radiator Cap
• NPT 1/4 Drain Plug

Upgrade your vehicle's stance and stability with EVIL ENERGY 5x4.5 Wheel Spacers. Engineered from aircraft-grade aluminum with precision-machined 1.5-inch thickness, these spacers correct offset issues and enhance track width for better handling and tire clearance.