}
}
Dyno-Proven Performance
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+22 WHP & +34 lb-ft torque (peak gains at 3,400 RPM)
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3" mandrel-bent 409 stainless steel - optimized flow with OEM+ durability
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Three distinct configurations for every driving style
Exhaust Configuration Options
1. Rear Exit Exhaust System
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Best For: Daily drivers seeking refined performance
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Key Features:
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Deep, aggressive tone with minimal drone
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Compatible with leaf spring and coil spring models
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Choice of polished or black 4" tips
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Maintains OEM routing for clean look
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2. Side Exit Exhaust System
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Best For: Traditionalists wanting OEM+ style
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Key Features:
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Driver-side exit behind rear tire
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Coil spring models only
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15% weight reduction vs OEM
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Available with polished or black tips
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3. Off-Road Exhaust System
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Best For: Serious off-road enthusiasts
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Key Features:
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Pre-axle exit maximizes departure angle
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56% weight reduction (22.2 lbs vs OEM 50.3 lbs)
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90° turndown protects components
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Ideal for lifted trucks and rock crawlers
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Engineering Excellence
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Laser-cut flanges for perfect seal
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Robust 409 stainless withstands extreme conditions
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Precision mandrel bends maintain exhaust velocity
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US-made in Costa Mesa, CA
Sound Characteristics
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Deep, throaty tone under acceleration
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Minimal cabin drone at cruising speeds
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Aggressive but refined character
Fitment Guide
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Rear Exit Exhaust: All cabs except Crew Cab Long Bed
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Side Exit Exhaust: Coil spring models only (excludes leaf spring)
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Off-Road Exhaust: All configurations
Why STILLEN Stands Out
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Only system offering three distinct configurations
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Real dyno-proven gains - not just sound improvement
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Substantial weight savings on Off-Road version
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True bolt-on installation - no cutting required
Warranty & Support
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Limited lifetime warranty
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Expert technical support: (888) 278-5567
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Made in USA quality
Recommended For:
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Off-road adventurers (Off-Road Dump)
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Daily drivers (Rear Exit)
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Style-conscious owners (Side Exit)
Complete Your Build:
Pair with STILLEN Cold Air Intake for maximum gains
All claims verified on 93 octane fuel. Actual results may vary based on conditions.
This version:
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Clearly differentiates the three configurations
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Highlights specific performance benefits of each
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Provides exact technical specifications
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Maintains all warranty and compliance info
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Offers direct purchase guidance
Choose your exhaust tip finish – Polished or Black – and order now.