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- USA
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
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Description
GMC/Chevy, 1999-2006, 6.0L, Stainless - Truck Cat-Back Dual Exhaust KitsThe MPI Stainless Cat back system is engineered specifically for the older style 6. 0L and built to boost overall vehicle performance. It delivers noticeable gains in horsepower and torque, along with improved fuel efficiency. Thanks to our Patented pulse chamber technology, youll get a smooth, mellow interior tone with zero drone. Proudly manufactured in Montana, this system is built to last and ready to keep your truck performing at its best for
The MPI Stainless Cat-back system is engineered specifically for the older-style 6.0L and built to boost overall vehicle performance. It delivers noticeable gains in horsepower and torque, along with improved fuel efficiency. Thanks to our Patented pulse chamber technology, you’ll get a smooth, mellow interior tone with zero drone. Proudly manufactured in Montana, this system is built to last and ready to keep your truck performing at its best for years to come.
Performance Benefits – 6.0L
- Horsepower Gains: +20 hp at
- Torque Gains: +16.5 lb-ft at 4,500 RPM
- Fuel Efficiency: Average improvement of 1-2 MPG
- Heat: Reduces under-hood manifold temperature by 150 degrees
Sound Quality:
- MPI Turbo Series: Our Turbo series Muffler combines MPI benefits with a pleasant, mellow exterior tone that is slightly deeper than the stock system.
- MPI Performance: Our Performance Muffler provides a crisp, aggressive tone that remains balanced.
Key Features
- Patented Pulse Chamber Technology: Eliminates all in-cab droning common with other aftermarket exhausts.
- High-grade stainless-steel Construction: Formulated for high heat resistance and durability against road salts.
- Straightforward Installation: This kit starts at the inlet of the factory muffler. Fitting all wheelbase trucks. All stainless hangers, mufflers, and tips are provided. Welding is required to attach to the factory system.
Detailed Specifications
- Material: Stainless
- Installation: Weld-together system, connects to the system at the inlet side of the factory Muffler
- Hardware: Includes all necessary hardware for installation.
- Design: Compatible with the factory spare tire location.
- Tubing Size: Dyno-proven optimal size for performance.
- Tips: 3.5" x 12" long tips for a refined appearance.
Fitment
- Make: Chevy & GMC
- Model Years: 1999 - 2025
- Chassis: 2500 & 3500
- Engine: 6.0L
- Wheelbase: Compatible with all wheelbases
Patented Technology
- Exhaust Pulse Chamber (Pat. 11713700): It is guaranteed to have no drone and optimizes exhaust flow and overall performance
Warranty
- MPI Exhaust has A Limited Lifetime Warranty for all Stainless Products.
Instructions
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Great style and comfort
This is a fantastic sweatshirt! Made from a high quality fabric this shirt doesn't even feel like what you think of when you think "sweatshirt". It has a sophisticated design pattern and a great style perfect for golf or even to wear to the office in a casual tech company. My husband has done so and got many compliments and requests to tell him where he got it!
It is true to size, with a cut that fits a variety of body sizes perfectly. It is very flattering, comfortable, and soft. It just looks great.
It washes easily, stains do not set and neither do wrinkles. I intend to buy more of these in other colors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
★★★★★ 5
Excellent Midlayer for Golf
Color: Light Brown Heather, Size: X-Large
My dad has been wearing this M MAELREG hoodie for about a week now, specifically during my early morning golf rounds where the temperature sits in the low 50s. The fit is true to size with an "athletic" cut, meaning it’s tapered enough to look sharp but has enough stretch and light enough to allow for a full shoulder turn during a golf swing. The cost is also a lot lower than some of the tech golf shirts out there. Overall this is a great shirt for golfing with an expensive look.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026
★★★★★ 4
Good not great
Color: Blue Heather, Size: XX-Large
Good hoodie. Don’t know if it’s worth the price. Would feel better if it was $10 cheaper
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026
★★★★★ 5
Comfortable and casual enough for daily wear but still looks like you put thought into your look
Color: Grey Heather, Size: 3X-Large
Got this for my husband and was so pleased with the quality and fit. He wears it on top of his tee shirt and says it's one of the most comfortable hoodie he's worn. It's not too thick, but very warm. Great value as he wears it daily. Love the casual style while still looking put together.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Highly recommend
Big fan, have purchased multiple
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
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