STILLEN 2018-2023 Kia Stinger GT AWD/RWD [3.3L Twin Turbo] Cat Back Exhaust - 504330

The STILLEN Cat Back Exhaust for the 2018-2023 Kia Stinger GT AWD/RWD [3.3L Twin Turbo] is a high-performance upgrade designed to improve horsepower, torque, and exhaust tone while maintaining OEM appearance. Constructed from 304 stainless steel, this dual split rear cat back exhaust uses the factory tip outlets integrated into the rear bumper valance for a seamless fit. The system enhances exhaust flow, delivering a 30+ HP and 30+ TQ* gain while producing a rich, authoritative tone under throttle without excessive cabin drone.

Fitment:

• 2018-2023 Kia Stinger GT AWD [3.3L Twin Turbo]
• 2018-2023 Kia Stinger GT RWD [3.3L Twin Turbo]

Key Features:

• Maximum incremental horsepower gain: 30 HP @ 6000 RPM*
• Maximum incremental torque gain: 30 lb-ft @ 3500 RPM*
• Authoritative tone under throttle
• Dual split rear exhaust configuration
• 304 stainless steel construction for durability
• Uses factory exhaust tip outlets for OEM appearance
• Limited lifetime warranty
• Maintains stock emissions components
• Minimizes drone for comfortable daily driving
• Compatible with additional STILLEN performance upgrades (intake, diffuser, splitter)

*Results may vary

Technical Details / Performance:

• Material: 304 stainless steel, mandrel bent
• Configuration: Dual split rear exhaust with factory tip integration
• Designed to reduce back pressure and optimize exhaust flow
• Provides noticeable gains in horsepower and torque while maintaining factory drivability
• Enhances exhaust sound while preserving quiet cruising comfort
• Compatible with optional rear diffuser and front splitter (rear diffuser not compatible with 2022 Stinger)
• STI part number: 504330