MagnaFlow is a performance exhaust manufacturer best known for cat‑back and axle‑back systems, mufflers, and catalytic converters engineered for quality sound and improved flow. Their vehicle-specific exhaust options span muscle, import, and truck applications—making MagnaFlow a staple upgrade when you want a deeper tone, cleaner fitment, and a proven performance-focused exhaust setup.
MagnaFlow System Catalytic Converter: Jeep Grand Cherokee 1998
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PART # 15858
MADE IN THE USA
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MagnaFlow is a performance exhaust manufacturer best known for cat‑back and axle‑back systems, mufflers, and catalytic converters engineered for quality sound and improved flow. Their vehicle-specific exhaust options span muscle, import, and truck applications—making MagnaFlow a staple upgrade when you want a deeper tone, cleaner fitment, and a proven performance-focused exhaust setup.
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MagnaFlow Street Series Cat-Back Performance Exhaust System
1998 Jeep Grand Cherokee 5.2L & 5.9L
15858
Overview:
The MagnaFlow Street Series Cat-Back Performance Exhaust System is engineered specifically for the 1998 Jeep Grand Cherokee equipped with 5.2L and 5.9L engines. Designed to replace the factory exhaust components from just behind the catalytic converter, this system enhances your vehicle’s performance and sound without compromising drivability. Ideal for Jeep enthusiasts seeking a balance of power, style, and a refined exhaust note, this kit delivers a resonant yet moderate exterior tone paired with a mild interior sound level.
Whether you’re looking to improve throttle response, increase exhaust flow, or simply upgrade your Jeep’s auditory presence, the MagnaFlow system offers a direct-fit, bolt-on solution that elevates your driving experience while maintaining reliability and durability.
Key Features:
This exhaust system combines advanced engineering with quality materials to provide a noticeable performance upgrade and aggressive sound. Key features include:
- Mandrel-bent 2.5-inch main piping for optimal exhaust flow and minimal restriction
- Single straight-through muffler design to reduce backpressure and enhance power delivery
- Polished 3.5-inch welded-on double-wall angle cut rolled edge exhaust tip for a stylish finish
- Cat-back layout replacing stock components from near the catalytic converter to the rear exit
- Direct-fit design developed through extensive 3D scanning for easy installation
- Manufactured using CNC precision robotic techniques for consistent quality and fitment
- Durable corrosion-resistant stainless steel construction for long-lasting performance
- Backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty
Construction & Design:
Crafted from premium stainless steel, this MagnaFlow exhaust system is built to withstand the rigors of daily driving and harsh environments. The corrosion-resistant material ensures longevity and maintains a polished appearance over time. The mandrel-bent tubing preserves the exhaust’s diameter throughout bends, preventing flow restrictions and maximizing efficiency.
Precision robotic manufacturing guarantees exact fitment and consistent weld quality, resulting in a system that installs seamlessly and performs reliably. The polished double-wall exhaust tip not only adds a refined aesthetic but also resists discoloration from heat and elements.
Performance & Sound
The MagnaFlow Street Series system is dyno-proven to improve exhaust flow, which can enhance throttle response and overall engine efficiency. Its straight-through muffler design produces a deep, resonant tone that is powerful yet controlled, delivering moderate exterior sound levels and mild interior noise. This balance ensures your Jeep stands out without being intrusive, turning heads at every stoplight.
Installation & Fitment:
Designed as a direct-fit cat-back system, this exhaust kit installs easily using existing mounting points and hardware. No cutting, welding, or modifications are required, making it a straightforward upgrade for DIY enthusiasts or professional installers. The system fits 1998 Jeep Grand Cherokee models equipped with 5.2L and 5.9L engines, including Laredo, Limited, and 5.9 Limited trims.
What's Included:
- Mandrel-bent 2.5-inch stainless steel main piping
- Single straight-through muffler
- 3.5-inch polished double-wall angle cut rolled edge exhaust tip
- All necessary clamps and hardware for installation
- Detailed installation instructions
Ideal For:
This MagnaFlow exhaust system is perfect for Jeep Grand Cherokee owners who want to enhance their vehicle’s performance and sound without sacrificing daily drivability. It suits enthusiasts looking for a durable, high-quality upgrade that delivers a sporty exhaust note and improved exhaust flow. Whether you use your Jeep for daily commuting, weekend adventures, or light off-roading, this system adds both style and substance to your ride.
-
Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
-
YEARMAKEMODELSUBMODEL2005JeepCommander5.7L Hemi1999 - 2000JeepGrand Cherokee2.5L2007 - 2008JeepGrand Cherokee3.0L V62011 - 2025JeepGrand Cherokee3.6L V62005 - 2010JeepGrand Cherokee3.7L V61993 - 2004JeepGrand Cherokee4.0L I61999 - 2010JeepGrand Cherokee4.7L V81993 - 2004JeepGrand Cherokee5.2L V82005 - 2025JeepGrand Cherokee5.7L Hemi1993 - 2004JeepGrand Cherokee5.9L V82006 - 2010JeepGrand Cherokee6.1L SRT81993 - 2010JeepGrand CherokeeAll1991 - 1996JeepWrangler4.0L I6
-
MagnaFlow Street Series Cat-Back Performance Exhaust System
1998 Jeep Grand Cherokee 5.2L & 5.9L
15858
Overview:
The MagnaFlow Street Series Cat-Back Performance Exhaust System is engineered specifically for the 1998 Jeep Grand Cherokee equipped with 5.2L and 5.9L engines. Designed to replace the factory exhaust components from just behind the catalytic converter, this system enhances your vehicle’s performance and sound without compromising drivability. Ideal for Jeep enthusiasts seeking a balance of power, style, and a refined exhaust note, this kit delivers a resonant yet moderate exterior tone paired with a mild interior sound level.
Whether you’re looking to improve throttle response, increase exhaust flow, or simply upgrade your Jeep’s auditory presence, the MagnaFlow system offers a direct-fit, bolt-on solution that elevates your driving experience while maintaining reliability and durability.
Key Features:
This exhaust system combines advanced engineering with quality materials to provide a noticeable performance upgrade and aggressive sound. Key features include:
- Mandrel-bent 2.5-inch main piping for optimal exhaust flow and minimal restriction
- Single straight-through muffler design to reduce backpressure and enhance power delivery
- Polished 3.5-inch welded-on double-wall angle cut rolled edge exhaust tip for a stylish finish
- Cat-back layout replacing stock components from near the catalytic converter to the rear exit
- Direct-fit design developed through extensive 3D scanning for easy installation
- Manufactured using CNC precision robotic techniques for consistent quality and fitment
- Durable corrosion-resistant stainless steel construction for long-lasting performance
- Backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty
Construction & Design:
Crafted from premium stainless steel, this MagnaFlow exhaust system is built to withstand the rigors of daily driving and harsh environments. The corrosion-resistant material ensures longevity and maintains a polished appearance over time. The mandrel-bent tubing preserves the exhaust’s diameter throughout bends, preventing flow restrictions and maximizing efficiency.
Precision robotic manufacturing guarantees exact fitment and consistent weld quality, resulting in a system that installs seamlessly and performs reliably. The polished double-wall exhaust tip not only adds a refined aesthetic but also resists discoloration from heat and elements.
Performance & Sound
The MagnaFlow Street Series system is dyno-proven to improve exhaust flow, which can enhance throttle response and overall engine efficiency. Its straight-through muffler design produces a deep, resonant tone that is powerful yet controlled, delivering moderate exterior sound levels and mild interior noise. This balance ensures your Jeep stands out without being intrusive, turning heads at every stoplight.
Installation & Fitment:
Designed as a direct-fit cat-back system, this exhaust kit installs easily using existing mounting points and hardware. No cutting, welding, or modifications are required, making it a straightforward upgrade for DIY enthusiasts or professional installers. The system fits 1998 Jeep Grand Cherokee models equipped with 5.2L and 5.9L engines, including Laredo, Limited, and 5.9 Limited trims.
What's Included:
- Mandrel-bent 2.5-inch stainless steel main piping
- Single straight-through muffler
- 3.5-inch polished double-wall angle cut rolled edge exhaust tip
- All necessary clamps and hardware for installation
- Detailed installation instructions
Ideal For:
This MagnaFlow exhaust system is perfect for Jeep Grand Cherokee owners who want to enhance their vehicle’s performance and sound without sacrificing daily drivability. It suits enthusiasts looking for a durable, high-quality upgrade that delivers a sporty exhaust note and improved exhaust flow. Whether you use your Jeep for daily commuting, weekend adventures, or light off-roading, this system adds both style and substance to your ride.
Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.