AMVirtuo Long Tube Headers for 2007-2014 Chevy Silverado GMC Sierra Tahoe Suburban Yukon Cadillac Escalade, 4.8L 5.3L 6.0L 6.2L V8
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Fitment and Compliance Notice: Professional installation is recommended. Verify vehicle fitment, clearance, exhaust requirements, and local regulations before purchase.
Key Features
Broad V8 Engine Coverage
These long tube headers fit the most popular GM truck and SUV V8 engines from 2007-2014 — 4.8L, 5.3L, 6.0L, and 6.2L. Whether your Silverado runs the everyday 5.3L or your Escalade packs the 6.2L, this set has you covered across Chevrolet, GMC, and Cadillac platforms.
304-Grade Stainless Steel Build
Constructed from 304-grade stainless steel for long-lasting corrosion and heat resistance. Handles daily driving, heavy towing loads, and harsh winter climates without rust-through or material degradation that plagues cheaper headers.
Full TIG-Welded Construction
Every joint on these Chevy truck headers receives a complete TIG-welded seam — not the spot-welding found on budget alternatives. Deep weld penetration and low porosity create robust joints that resist cracking even under repeated heat cycling and heavy acceleration.
Optimised Exhaust Pulse Tuning
The manifold design evens out exhaust pulses across all cylinders, cutting backpressure and producing smoother low- to mid-range torque. You'll notice the difference when pulling a trailer or merging onto the highway in your 5.3 Silverado or Yukon.
CNC-Flanged Surfaces
CNC-machined flange surfaces ensure precise, leak-free mating with your cylinder heads and exhaust system. Includes gaskets and mounting hardware for a straightforward install. Professional installation is recommended for best results.
Description
AMVirtuo long tube headers replace the restrictive factory manifolds on your 2007-2014 GM full-size truck or SUV. The 1.75" primary tubes flow into a 3" collector, opening up the exhaust path for your 4.8L, 5.3L, 6.0L, or 6.2L V8 engine to breathe more efficiently. Less backpressure means stronger acceleration and a more aggressive exhaust note.
These Silverado long tube headers are built entirely from 304-grade stainless steel and fully TIG-welded at every connection point. CNC-flanged mating surfaces guarantee a proper seal at the cylinder head and collector, so you won't be chasing exhaust leaks after installation. The 7/16" head flange and 3/8" outlet flange add rigidity where it matters most.
Vehicle Fitment
| Vehicle | Years | Engine |
| Chevy Silverado 1500 / 2500 / 3500 | 2007-2013 | 4.8L V8, 5.3L V8, 6.0L V8 |
| GMC Sierra 1500 | 2007-2013 | 4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8 |
| Chevy Suburban 1500 / 2500 | 2007-2014 | 5.3L V8, 6.0L V8 |
| Chevy Tahoe | 2007-2014 | 4.8L V8, 5.3L V8 |
| GMC Yukon / Yukon XL | 2007-2014 | 4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8 |
| Cadillac Escalade | 2007-2014 | 6.2L V8 |
⚠️ Important Fitment Notes
Engine Compatibility: Fits 4.8L (LR4), 5.3L (L76/LY5/LMG), 6.0L (L96/LY6), and 6.2L (L94) V8 engines in GMT900-platform vehicles. Does NOT fit 4.3L V6 or 6.6L Duramax diesel engines.
Flex Fuel Vehicles: Compatible with E85/flex-fuel variants of the listed engines.
Classic Models: The 2007 "Classic" body style (GMT800 continuation) is not covered — these headers fit only the 2007+ "new body" (GMT900) design.
Technical Specifications
| Specification | Details |
| Header Type | Long Tube |
| Material | 304-Grade Stainless Steel |
| Primary Tube Size | 1.75" |
| Outlet Size | 3.00" |
| Head Flange Thickness | 7/16" |
| Outlet Flange Thickness | 3/8" |
| Welding Process | Full TIG-Welded (all seams) |
| Flange Type | CNC-Machined |
| Fitment Type | Direct Replacement |
Headers vs Stock Exhaust Manifolds
Factory cast iron manifolds restrict exhaust flow and are prone to cracking under thermal stress. Here's how AMVirtuo long tube headers compare:
| Feature | Stock Manifolds | AMVirtuo Long Tube Headers |
| Material | Cast Iron | 304-Grade Stainless Steel |
| Primary Tube | Integrated cast passages | 1.75" mandrel-bent tubing |
| Collector Outlet | N/A (factory Y-pipe connection) | 3.00" outlet |
| Weld Quality | N/A (cast iron) | Full TIG-welded seams |
| Corrosion Resistance | Low — rusts over time | High — stainless steel |
| Backpressure | High | Reduced for better flow |
| Weight | Heavy | Lighter stainless construction |
Installation Notes
Professional installation is recommended. Key points for your GMT900 long tube headers install:
- Pre-Installation: Allow the engine and exhaust system to cool completely before beginning work.
- Gasket Sealing: Use the included gaskets and hardware. Apply anti-seize compound to all studs and bolts for easier future removal.
- Torque Sequence: Tighten flange bolts in a crisscross pattern to 18-22 ft-lbs to avoid warping the CNC flange.
- Re-Torque: After the first heat cycle, re-torque all flange bolts. Check again after 500 miles.
- Clearance: Verify steering shaft, frame rail, and transmission cooler line clearance before final tightening. Minor repositioning of O2 sensor wiring may be needed.
Pro Tip: Spray the factory manifold-to-cat bolts with penetrating oil the night before you plan to install. GM often uses thread-locker from the factory, and these bolts are notorious for snapping if you rush the removal. Take your time, apply steady pressure, and have extractor bits on hand just in case.
What's Included
- 1x Driver Side Long Tube Header
- 1x Passenger Side Long Tube Header
- Exhaust Gaskets
- Mounting Hardware Kit (screws, bolts)
At AMVirtuo, we want every customer to feel confident when purchasing from us. If something isn’t right, our team will always do our best to help resolve the issue quickly and fairly.
Please review the policy below for details on returns, cancellations, and refunds.
30-Day Return Window
We offer a 30-day return window from the date your order is delivered.
If you are not completely satisfied with your purchase, you may request a return within this period, provided the product meets the return conditions listed below.
Order Cancellation
Orders may be canceled within 24 hours of purchase.
If your cancellation request is received within this timeframe, we will issue a full refund. Refunds are typically processed within 24 hours after confirmation.
If the order has already been processed or shipped after the 24-hour window, cancellation may no longer be possible. In this case, the order may be returned after delivery following our return policy.
Return Conditions
· To be eligible for a return, items must meet the following requirements:
· The return request must be made within 30 days of delivery
· The item must be unused and in new condition
· The product must be returned in its original packaging
· All included hardware, accessories, and components must be returned
Please ensure that returned items are securely packaged. Items damaged during return shipping due to improper packaging may not be eligible for a refund.
Please ensure that returned items are securely packaged. Items damaged during return shipping due to improper packaging may not be eligible for a refund.
Returns Due to Product Quality Issues
If a return is requested due to a product defect or quality issue, please get in touch with our support team and provide:
Your order number
Photos or videos showing the issue
Once our team confirms the issue, AMVirtuo will cover the return shipping cost.
After the returned item is received and inspected, a full refund will be issued. Refunds are typically processed within 48–72 hours after inspection.
Returns for Other Reasons
If a return is requested for reasons such as:
Ordered the wrong product
No longer needed
Changed your mind
Refused delivery
The customer will be responsible for the return shipping cost.
Once the returned item arrives at our warehouse and passes inspection, the refund will be issued. Please allow up to 2 weeks for the return to be processed and the refund to appear.
Installation and Fitment Responsibility
Automotive performance parts, including exhaust headers and engine components, may require professional installation and proper vehicle compatibility verification.
Customers are responsible for ensuring the product is compatible with their vehicle before purchasing.
Products that have been installed, used, or modified may not be eligible for return.
Non-Returnable Items
For safety and quality reasons, the following items may not be eligible for return:
Products that show signs of installation or use
Products that are damaged during installation
Items returned without original packaging or components
Refund Processing
All refunds will be issued to the original payment method used at checkout.
Processing time may vary depending on your payment provider, but refunds are typically completed within a few business days after approval.
How to Start a Return
To request a return, please contact our support team:
Please include:
Your order number
The reason for the return
Photos or videos if applicable
Our support team will guide you through the return process and provide the necessary return instructions.
Our Commitment
At AMVirtuo, we are committed to providing reliable performance parts and excellent customer service.
If you ever have questions or concerns about your order, please reach out to us. Our team will always do our best to help and make things right.