Finding the perfect exhaust system for your Jeep Grand Cherokee WJ can transform your driving experience with enhanced sound and performance. The right exhaust not only delivers that signature deep rumble but also improves airflow and power output. We’ve tested and reviewed the top-rated exhaust systems specifically designed for 1999-2004 Grand Cherokee models to help you make an informed decision.
Best Sounding Exhaust for Jeep Grand Cherokee WJ
| Product | Short Description |
|---|---|
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Expert’s Choice
Flowmaster
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Dynomax
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MagnaFlow
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Borla Touring
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Flowmaster – Best Overall Choice Exhaust for Jeep Grand Cherokee WJ
The Flowmaster FlowFX cat-back exhaust system delivers exceptional performance and sound for your 1999-2004 Jeep Grand Cherokee. Built with premium 409 stainless steel construction, this system features 16-gauge 2.50-inch mandrel-bent tubing that maximizes exhaust flow and reduces backpressure. The compact oval “straight-through” FlowFX performance muffler produces a moderate deep powerful sound that’s perfect for both daily driving and off-road adventures.
What sets this system apart is its rugged design tailored for Jeep enthusiasts. The mandrel-bent stainless tailpipe tucks high in the undercarriage, protecting it from damage during rocky terrain traversing. The large 3.50-inch black ceramic coated 304 stainless steel tip adds an aggressive look while being embossed with the iconic Flowmaster name. Installation is straightforward using factory hanger locations, and the kit includes all necessary hardware and detailed instructions for easy at-home installation.
- Premium 409 stainless steel construction
- Deep powerful moderate sound level
- Protected high-mounted tailpipe design
- Large black ceramic coated tip
- Lifetime limited warranty coverage
- Higher price point than alternatives
- May be too loud for some
Expert Recommendation
This Flowmaster system offers the perfect balance of performance, durability, and sound quality. The lifetime warranty and rugged construction make it ideal for serious Jeep enthusiasts who want premium quality.
Dynomax – Best Budget Exhaust for Jeep WJ 4.7L
The Dynomax Super Turbo exhaust system offers outstanding value for 1999-2001 Jeep Grand Cherokee owners seeking improved performance and sound. This complete solution features the patented Super Turbo muffler with exclusive flow director technology that channels exhaust flow and eliminates turbulence. The system is dyno-proven to flow up to 415 SCFM, delivering measurable performance gains.
Built with aluminized steel tubing and mandrel bends, this system improves flow capacity significantly over stock configurations. The large internal flow tubes reduce backpressure while fiberglass matting technology absorbs unwanted resonance, maintaining a mellow performance tone. The pre-assembled design with welded hangers, pipes, and clamps makes installation straightforward without requiring specialized fabrication or welding skills.
- Excellent value for money pricing
- Patented flow director technology design
- Pre-assembled for easy installation
- Mellow performance tone quality
- Lifetime warranty and performance guarantee
- Limited to earlier WJ models
- Aluminized steel less corrosion resistant
Expert Recommendation
Perfect for budget-conscious enthusiasts who want proven performance gains without breaking the bank. The lifetime warranty provides excellent peace of mind.
MagnaFlow – Best Sounding Exhaust for Jeep Grand Cherokee WJ
The MagnaFlow Street Series cat-back exhaust system brings out the true personality of your 1999-2004 Jeep Grand Cherokee with signature resonant, powerful engine tone and dyno-proven performance improvements. This system features fast-flowing, mandrel-bent 2.5-inch main piping with straight-through muffler technology that maximizes exhaust flow while maintaining moderate exterior and mild interior sound levels.
The system terminates in a single straight passenger-side rear exit with an impressive 4-inch polished welded-on double wall angle cut rolled edge tip that adds serious visual appeal. Extensive 3D scanning during development ensures a direct-fit design that installs easily without modifications. CNC precision robotic manufacturing techniques guarantee consistent quality and perfect fitment every time.
- Perfect balance sound and performance
- Premium polished double wall tip
- 3D scanned direct fit design
- CNC precision robotic manufacturing
- Moderate exterior mild interior sound
- Single exit may look asymmetrical
- Premium pricing reflects quality
Expert Recommendation
The MagnaFlow system offers the ideal combination of performance, sound quality, and visual appeal, making it our top choice for most Grand Cherokee WJ owners.
Borla Touring – Best Premium Performance Exhaust System for Jeep WJ 4.7L
The Borla Touring Cat-Back exhaust system is engineered specifically for 1999-2004 Jeep Grand Cherokee WJ models with 4.0L 6-cylinder or 4.7L V8 engines. This premium system features patented straight-through and multi-core technology that unleashes hidden horsepower while delivering the signature mellow Touring sound with zero cabin drone. Constructed from superior T-304 austenitic stainless steel, this system outperforms cheaper T-400 series alternatives in both durability and performance.
The 2.25-inch diameter design incorporates ultra-smooth mandrel bends for maximum exhaust flow and power gains, while precision CNC manufacturing ensures perfect fitment. The system includes two front pipes to accommodate both 1999-2003 and 2004 models, and exits through an attractive 4-inch round bright chrome stainless steel tip. Beyond performance improvements, you’ll experience enhanced fuel economy and increased exhaust velocity. Backed by Borla’s industry-leading Million-Mile Warranty, this system represents decades of exhaust engineering expertise from the world’s most winning exhaust brand.
- Premium T-304 stainless steel ensures longevity
- Mellow sound with zero interior drone
- Noticeable power and fuel economy gains
- Million-Mile Warranty provides peace of mind
- Perfect fit with CNC precision manufacturing
- Premium pricing compared to budget alternatives
- Professional installation recommended for best results
Expert Recommendation
The Borla Touring is the ultimate exhaust upgrade for WJ owners seeking performance without compromise. Its superior construction, proven power gains, and lifetime warranty make it a smart long-term investment that delivers both sound quality and durability.
Conclusion
Choosing the right exhaust system for your Jeep Grand Cherokee WJ depends on your specific needs and budget. The Flowmaster FlowFX offers premium construction and rugged durability for serious enthusiasts, while the Dynomax Super Turbo provides excellent value with proven performance technology. The MagnaFlow Street Series strikes the perfect balance with its combination of sound quality, performance, and visual appeal. All three systems offer significant improvements over stock exhaust in terms of sound, flow, and overall driving experience. Consider your budget, sound preferences, and intended use when making your final decision.
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