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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Banks Power 20-21 Chevy/GMC 2500/3500 6.6L Monster Sport Exhaust SystemBanks Power introduces the new 5 in. Monster Exhaust designed specifically for the 2020 2021 GM 6. 6L Duramax L5P 2500 3500 HD pickup trucks. The DPF back exhaust system features constant diameter 5 in. mandrel bent Aluminized Steel tubing and a massive patented tip which virtually eliminates backpressure after the DPF and prevents trailer meltdown. With the stock exhaust nozzle measuring compared to the Monster Exhausts massive outlet, the Banks
Banks Power introduces the new 5- in. Monster Exhaust designed specifically for the 2020-2021 GM 6.6L Duramax L5P 2500/3500 HD pickup trucks. The DPF-back exhaust system features constant-diameter 5- in. mandrel-bent Aluminized Steel tubing and a massive patented tip which virtually eliminates backpressure after the DPF and prevents trailer meltdown. With the stock exhaust nozzle measuring compared to the Monster Exhausts massive outlet, the Banks system offers a 192 percent greater flow area than stock. The Monster Exhaust boasts 85 percent less backpressure than stock, leading to more power and increased fuel economy. Duramax owners can choose from two huge patented 6.5 x 7.5- in. ob-round slash-cut exhaust tips: chrome-plated polished stainless steel or high-temp matte black. And, unlike other brands, Bankss chrome-plated stainless tip will not turn brown with heat. The Monster Exhaust also provides a 15 percent reduction in exhaust temperature two feet behind the tip during regen! The Diesel Particulate Filter (DPF) on the Duramax L5P is cleaned through regeneration in which scorching exhaust gas temperatures can last up to 20 minutes while driving. Unlike the stock Duramax exhaust, which directs a prolonged jet-like blast of super-heated exhaust gas directly at anything being towed, the Monster Exhaust is aimed out to the side of the truck. This allows ambient air to diffuse the heated gas, eliminating the risk of melting a trailer, which has been reported by many Duramax owners.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2022 | Chevrolet | Silverado 2500 HD | Custom |
| 2020-2022 | Chevrolet | Silverado 2500 HD | High Country |
| 2020-2022 | Chevrolet | Silverado 2500 HD | LT |
| 2020-2022 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020-2022 | Chevrolet | Silverado 2500 HD | WT |
| 2020-2022 | Chevrolet | Silverado 3500 HD | High Country |
| 2020-2022 | Chevrolet | Silverado 3500 HD | LT |
| 2020-2022 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020-2022 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2022 | GMC | Sierra 2500 HD | AT4 |
| 2020-2021 | GMC | Sierra 2500 HD | Base |
| 2020-2022 | GMC | Sierra 2500 HD | Denali |
| 2022 | GMC | Sierra 2500 HD | Pro |
| 2020-2022 | GMC | Sierra 2500 HD | SLE |
| 2020-2022 | GMC | Sierra 2500 HD | SLT |
| 2020-2022 | GMC | Sierra 3500 HD | AT4 |
| 2020-2021 | GMC | Sierra 3500 HD | Base |
| 2020-2022 | GMC | Sierra 3500 HD | Denali |
| 2022 | GMC | Sierra 3500 HD | Pro |
| 2020-2022 | GMC | Sierra 3500 HD | SLE |
| 2020-2022 | GMC | Sierra 3500 HD | SLT |
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
4.1 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Perfect for Prom, the satin detail elevates the look
Size: Medium, Color: Black, Size: Medium, Color: Black
This sport jacket was a great item for prom. We had it altered and taken in a little to be more form fitting. It was lightweight enough to be comfortable and the color was a nice black with satin collar. It was a great value for the money and this is the second one I've bought. The first one was red for freshman homecoming. Fits true to size as this is a medium but we did want it a little more form-fitting.
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Reviewed in the United States on August 20, 2025
★★★★★ 5
well made
Size: Medium, Color: Black
My son looked SO handsome for Prom. This suit was surprisingly well-made for the cost. After pricing tux rental, this was a no-brainer.
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Reviewed in the United States on May 22, 2026
★★★★★ 4
Jr
Size: Large, Color: Royal Blue
Nice jacket but sleeves run small. My son is 6'1.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Much better quality than I expected
Size: X-Large, Color: Black
Better than I expected, actually a quality jacket. I'd wear it every day. The fit is perfect and exactly my style. I can't say much about washabiity due to having mine drycleaned
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Reviewed in the United States on December 10, 2025
★★★★★ 5
So many compliments
Size: Small, Color: Bright Purple, Size: Small, Color: Bright Purple
I received so many compliments on this jacket! 5’6” 140lbs. Fit like a glove but a little long. I will get the sleeves shortened.
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Reviewed in the United States on February 5, 2026