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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
GMC/Chevy, 2014-2018, 5.3L, Stainless - MPI Exhaust Cat-Back Dual Exhaust KitsThe MPI Exhaust Kit is a Cat back Exhaust system specifically engineered for Chevy GMC trucks equipped with a 5. 3L engine. It enhances overall vehicle performance and towing power, delivering notable gains in horsepower, torque, and fuel efficiency, as verified through extensive dyno testing. Designed for easy DIY installation, the kit leverages 35 years of exhaust experience and includes all necessary hardware. These kits are 50 state emission legal
The MPI Exhaust Kit is a Cat-back Exhaust system specifically engineered for Chevy/GMC trucks equipped with a 5.3L engine. It enhances overall vehicle performance and towing power, delivering notable gains in horsepower, torque, and fuel efficiency, as verified through extensive dyno testing. Designed for easy DIY installation, the kit leverages 35 years of exhaust experience and includes all necessary hardware. These kits are 50-state emission legal and do not void the factory warranty.
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: No welding required, utilizes factory hanger locations, and comes with detailed trimming instructions for different wheelbases.
Performance Benefits: [ Sound ]
- Horsepower Gains: + 21.5 hp @ 4,000 RPM
- Torque Gains: + 28 lb-ft @ 4,000 RPM
- Fuel Efficiency: Average improvement of 2-4 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.
Fitment:
- Make: Chevy or GMC
- Model Years: 2014 – 2018
- Chassis: 1500
- Engine: 5.3L
- Wheelbase: Compatible with all wheelbases
Detailed Specifications
- Material: 409 Stainless
- Installation: Clamp-together system, direct fitment to factory hanger locations.
- Hardware: Includes all necessary hardware for installation.
- Design: Compatible with the factory spare tire.
- Tubing Size: Dyno-proven optimal size for performance.
- Tips: Large 3.5" x 12" long tips for a refined appearance.
Patented Technology
- Exhaust Pulse Chamber (Pat. 11713700): Guaranteed no drone and optimizes exhaust flow and overall performance.
Warranty
- Stainless Warranty: Ensures long-term reliability and customer satisfaction.
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
4.3 ★★★★★
Based on 566 reviews
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Product Reviews
★★★★★ 3
Inconsistent
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Ive ordered two different batches of these pillows, the first was a 2 pack, the second batch was a 4 pack. The pillows that came in the 2 pack have a different quality to them. The memory foam feels thicker, takes long to depress and to spring back to form. It offers more resistance, a heavier odor (at the start), and was the pillow that I fell in love with. Things changed when I ordered the 4 pack a couple months later. There was an inconsistency between the foam in these two different batches. both sets of pillows are comfortable. The first batch being firmer means I had to remove more foam before it became comfortable but the 2nd batch being more springy, I was able to keep all the foam inside. I docked a couple stars because I’m not able to provide a consistent experience with these pillows across all three beds in my home.
If you need a pillow, order a set and be happy. If you want a bunch of memory foam pillows throughout your house, maybe look elsewhere as these may not all be identical.
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Very cool and comfortable pillows. Great value.
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
These pillows are everything described on the site. They do retain shape and don’t flatten out after sleeping all night. They are nice and clean looking and comfortable. The fit on my king size bed is perfect cause I prefer the size to king size. Haven’t had to wash them yet but I have had other pillows with the same material inside and the wash ability is great.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Great pillow
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
The pillows feel great. Being able to remove portions of the interior allowed me and my wife to have a perfect fit. They do stay cool which seems to have helped with my restlessness.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Soft and cool.
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Love this pillow set. Comfortable addition and nice and cool at all times. Going to be great for when the hot weather hits
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Reviewed in the United States on June 8, 2026
★★★★★ 5
As advertised for once! Lol
Color: Cooling Blue Cover, Size: Queen (Pack of 2), Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Queen size set of 2 pillows, I'm giving it 5stars first bc it has a good length and width!! If you've ever bought memory foam pillows before you know some are small!! Anyways after having it for 5nights, we loved that me and my huddy could adjust the Thickness amount we had in it to our needs, me needing a thick pillow and my husband needing a flatter one. So this was perfect for that. So far its nice to sleep on, stays cool, doesnt get hot. I would say its on the frimer side but softer the more foam you take out! Really its just good for the amount you spend!! Will it last 10years probably not but what does now a days. This is the only time my huddy n I bought the same pillow and both love it so I'm just still in shock it worked out so well!!
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Reviewed in the United States on April 28, 2026