Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
aFe MACH Force-Xp 3in 409 Stainless Steel Down-Pipe 11-15 GM Diesel Trucks LML V8 6.6L (td)This aFe POWER turbo downpipe is engineered to outflow and outperform the restrictive, factory downpipe on the 2011 2015 GM Truck with V8 6. 6L (td) engine. The mandrel bent, stainless steel tubing offers smoother transition bends for increased airflow, delivering quicker turbo spool times. CNC machined V band inlets and outlets ensure a factory style, 360 degree sealing surface. Both inside and outside surfaces of the downpipe are ceramic coated to
This aFe POWER turbo downpipe is engineered to outflow and outperform the restrictive, factory downpipe on the 2011 - 2015 GM Truck with V8-6.6L (td) engine. The mandrel bent, stainless steel tubing offers smoother transition bends for increased airflow, delivering quicker turbo spool times. CNC machined V-band inlets and outlets ensure a factory style, 360-degree sealing surface. Both inside and outside surfaces of the downpipe are ceramic coated to reduce EGT's even in the most extreme environments.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2015 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2015 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2015 | Chevrolet | Silverado 2500 HD | WT |
| 2015 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2015 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2015 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2015 | Chevrolet | Silverado 3500 HD | WT |
| 2015 | GMC | Sierra 2500 HD | Base |
| 2011-2015 | GMC | Sierra 2500 HD | Denali |
| 2011-2015 | GMC | Sierra 2500 HD | SLE |
| 2011-2015 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2015 | GMC | Sierra 3500 HD | Base |
| 2011-2015 | GMC | Sierra 3500 HD | Denali |
| 2011-2015 | GMC | Sierra 3500 HD | SLE |
| 2011-2015 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
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 501 reviews
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Product Reviews
★★★★★ 5
Great
Size: Medium, Color: (001) Black / Black / Pitch Gray
The best pair of work / workout / casual socks I've bought in long time! They're no show on all my sneakers, incredibly comfortable and they never move.
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Great no show socks
Size: Small, Color: (725) Oxford Brown / Oxford Brown / Black
Very comfortable and perfect fit for my small feet. I love the full coverage sock feel with a totally no show sock.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Great no shows for people with larger feet
Size: Large, Color: (001) Black / Black / Castlerock
Some of my favorite socks!! Great quality, fit, and material. I love that they don't slip down in my shoes, especially considering I have larger feet. I also love that Under Armour offers larger sizes in their socks considering everyone in our household has much larger feet than others.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Best liner socks EVER
Size: Medium, Color: (348) Silica Green / Silica Green / Hydro Green
I have them in every color and used to get them from Sams, but they stopped selling them and I was lucky to find them on Amazon. Got all colors again. They stay, it's all I'm gonna say! And don't show in any of my tennis shoes. Absolutely love them and wear them until they get holes. They last a LONG time too. They're on the thin side and my foot loves them because they tend to get hot. There's no shrinking, they wash great with exception of the white ones I couldn't manage to keep white - they turned a bit greyish.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Great socks
Size: Medium, Color: Pink - 647
Well-made and comfortable to wear. Great for golf and other outdoor activities. Like them because they do not show above shoes.
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Reviewed in the United States on April 19, 2026