Built for Better Exhaust Flow on Compatible GM Vortec 2WD Applications
Give your compatible GM Vortec truck a stronger exhaust foundation with a long tube header setup built for better flow, a deeper V8 tone, and future performance upgrades.
This Flashark long tube header kit is designed for select 2007-2014 GM full-size 2WD/RWD models equipped with compatible 4.8L, 5.3L, 6.0L, or 6.2L Vortec gasoline V8 engines. It replaces the restrictive factory manifold setup with a stainless long tube header design that may support better exhaust flow, sharper throttle response, and a deeper V8 tone when installed correctly with the proper supporting exhaust setup.
Specifications:
| Brand | FLASHARK |
| Application | Automobile Exhaust Header |
| Material | 201 Stainless Steel |
| Surface | Mirror Polish |
| Long Tube w/ Y Pipe Model | EH28969 & EH28932 / ES08205 |
| Long Tube Model | EH28968 & EH28922 / ES08248 |
Style Differences:
| Feature | Long Tube Only | Long Tube with Y-Pipe |
|---|---|---|
| Primary Tube / Header Inlet | 1.75" | 1.7" |
| Outlet Size | 3.00" | 2.4" |
| Head Flange Thickness | 7/16" | 7/16" |
| Outlet Flange Thickness | 3/8" | 3/8" |
| O2 Sensor Locations | Standard Factory | 3 |
| Surface Finish | Mirror Polish (General Spec) | 3 Stage Polish Finish |
| Fuel Type | Gasoline | Gasoline |
| Placement on Vehicle | Front | Front |
Key Features
- Long tube header design: Helps improve exhaust flow compared with restrictive factory manifolds.
- 201 stainless steel construction: Built for a polished performance look and practical durability.
- Mirror-polished finish: Gives the engine bay and exhaust area a cleaner performance appearance.
- Header-only and Y-pipe options: Lets buyers choose based on their exhaust plan and installation needs.
- Vortec platform coverage: Supports selected 4.8L, 5.3L, 6.0L, and 6.2L gasoline V8 applications listed below.
- Hardware included: Kit includes headers and installation hardware/gaskets according to the selected product option.
Fitment Must Be Confirmed Before Ordering
Exhaust headers are fitment-sensitive parts. Please confirm your year, make, model, engine, drivetrain, and exhaust configuration before purchasing. If there is any conflict between product images, general wording, or older FAQ wording, use the Fitment & Compatibility table as the final reference.
- Confirm your vehicle is 2WD/RWD.
- Confirm your engine is a compatible gasoline Vortec V8.
- Confirm your exact model and year appear in the Fitment table below.
- Confirm whether you need the Long Tube Only option or the Long Tube with Y-Pipe option.
- Confirm local emissions and noise regulations before installation.
- Contact customer support before purchase if you are unsure about fitment.
Who This Header Kit Is For
This kit is best for owners who have already confirmed their vehicle fitment and want a stronger exhaust-flow upgrade than a basic manifold replacement.
- Owners of listed 2WD/RWD Chevy, GMC, or Cadillac Vortec V8 applications in the Fitment table below.
- Drivers upgrading from restrictive factory exhaust manifolds on compatible 4.8L, 5.3L, 6.0L, or 6.2L gasoline Vortec engines.
- Silverado, Sierra, Tahoe, Yukon, Avalanche, or Escalade owners who want a deeper exhaust tone and stronger long tube performance potential.
- Buyers choosing between a header-only setup and a Long Tube with Y-Pipe setup.
- Enthusiasts who understand that long tube header installation may involve O2 sensor, Y-pipe, mid-pipe, clearance, and tune-related checks.
- Budget-focused builders looking for a practical performance upgrade path without overpaying for unnecessary features.
Use Extra Caution If
- Your truck is lifted, heavily rusted, or already has an aftermarket exhaust system.
- You are trying to install this on a 2014 Silverado 1500 with the 5.3L EcoTec3 engine.
- You need a fully emissions-compliant street setup in a strict inspection area.
- You are expecting a bolt-on install with no possibility of adjustment, tune, O2 sensor work, or exhaust modification.
Factory Manifold Leaks, Exhaust Restriction & Vortec Upgrade Needs
Many older GM Vortec trucks are used for daily driving, towing, work duty, and weekend performance projects. Over time, factory exhaust manifolds and related hardware can become rusty, restrictive, or difficult to service. A long tube header setup is not just a cosmetic change; it changes how exhaust gases leave the engine and can support better flow when the rest of the setup is matched properly.
This kit may be a good upgrade path if your goal is to reduce exhaust restriction, refresh an aging manifold area, or build a stronger exhaust foundation for future intake, tune, or cat-back upgrades. It should not be treated as a guaranteed fix for every exhaust tick, broken bolt, leak, or check engine light. Those issues should be diagnosed before installation.
Long Tube Headers vs Shorty Headers vs Long Tube with Y-Pipe
Long tube headers and shorty headers serve different goals. Shorty headers are usually easier to install and may be a lighter upgrade over stock manifolds, but their performance gains are typically more modest. Long tube headers have stronger performance potential because they use longer primary tubes to help exhaust scavenging, especially when paired with the right exhaust and tune.
| Option | Best For | Garage Notes |
|---|---|---|
| Shorty Headers | Mild manifold replacement and easier installs. | Usually less performance potential than long tubes. Not the product sold on this page. |
| Long Tube Only | Buyers upgrading the headers while keeping or custom-building the mid-section exhaust. | May require additional exhaust work depending on your current Y-pipe or mid-pipe setup. |
| Long Tube with Y-Pipe | Buyers who want a more complete long tube header and Y-pipe upgrade path. | Helps simplify the header-to-mid-section plan, but final fitment still depends on vehicle and exhaust configuration. |
Expected Performance Gains
Long tube headers may support better horsepower, torque, throttle response, and exhaust tone by improving exhaust flow compared with restrictive factory manifolds. Actual results vary based on the engine, tune, intake, cat-back exhaust, catalytic converter setup, fuel quality, mileage, and installation quality.
For the best results, treat these headers as part of a full exhaust system plan rather than a guaranteed standalone horsepower number. A proper tune may help optimize performance and reduce drivability issues on some builds.
Why Buy Flashark Headers
- Clear fitment guidance: This page separates verified fitment from non-compatible applications to help reduce misorders.
- Multiple product options: Choose Long Tube Only or Long Tube with Y-Pipe based on your exhaust plan.
- Hardware included: The kit includes installation hardware and gaskets according to the selected option.
- Budget-friendly performance path: A practical long tube header upgrade for compatible Vortec-powered 2WD GM vehicles.
- Support available: Customer support can help with basic fitment questions, order issues, and warranty-related support.
Shipping, Warranty & Customer Support
| Estimated Delivery | Most orders are delivered within 7-9 business days after shipment, depending on warehouse availability and destination. |
| 1-Year Warranty | This product is backed by a 1-year warranty against manufacturing defects. |
| Returns & Fitment Support | Please confirm your vehicle year, model, engine, and drivetrain before ordering. If you are unsure about fitment, contact customer support before purchase. |
| Customer Support | Our support team can help with basic fitment questions, order issues, and warranty-related support. |
Fitment & Compatibility
| Brand | Model | Year Range | Compatible Engines |
|---|---|---|---|
| Chevrolet | Silverado 1500/2500/3500 | 2007-2013 | 4.8L/5.3L/6.0L Vortec V8 |
| Chevrolet | Tahoe | 2007-2014 | 4.8L/5.3L Vortec V8 |
| Chevrolet | Avalanche | 2007-2014 | 5.3L/6.0L Vortec V8 |
| GMC | Sierra 1500 | 2007-2013 | 4.8L/5.3L/6.0L/6.2L Vortec V8 |
| GMC | Yukon | 2007-2014 | 4.8L/5.3L/6.0L/6.2L Vortec V8 |
| Cadillac | Escalade (SUV/EXT Truck) | 2007-2014 | 6.2L Vortec V8 |
Will Not Fit
- Any 4WD or 4x4 Silverado, Sierra, Tahoe, Yukon, Avalanche, or Escalade application.
- Diesel engines.
- 2014 Silverado 1500 5.3L EcoTec3 applications.
- Vehicles not listed in the Fitment & Compatibility table above.
- Custom swaps without confirming header clearance, steering shaft clearance, O2 sensor placement, and exhaust routing.
- Vehicles that require a guaranteed emissions-compliant or 50-state legal exhaust setup unless local regulations and product compliance are confirmed by the buyer.
2014 Silverado Buyer Warning
Do not assume all 2014 Silverado trucks use the same header fitment. The verified Silverado fitment row above covers 2007-2013 Silverado 1500/2500/3500 applications with listed Vortec engines. This product does not fit the 2014 Silverado 1500 5.3L EcoTec3. If you have a 2014 Silverado HD or any unclear configuration, contact support before ordering.
Vortec Long Tube Headers FAQ
Q1: Will these headers fit my 2007-2013 Silverado 5.3?
A1: They are designed to fit listed 2007-2013 Chevrolet Silverado 1500/2500/3500 2WD/RWD applications with compatible 4.8L, 5.3L, or 6.0L Vortec V8 engines. Always confirm drivetrain and engine before ordering.
Q2: Will these fit a 2014 Silverado 1500 5.3?
A2: No. This product does not fit the 2014 Silverado 1500 with the 5.3L EcoTec3 engine. Do not order for that application.
Q3: Do these headers fit 4WD or 4x4 trucks?
A3: No. This product is for compatible 2WD/RWD applications only. It does not fit 4WD or 4x4 vehicles.
Q4: Will these fit a 4.8 Silverado?
A4: They fit listed 2007-2013 Chevrolet Silverado 2WD/RWD applications with the 4.8L Vortec V8. Confirm your exact year, drivetrain, and exhaust setup before purchase.
Q5: Will these fit a 6.0 Vortec?
A5: They fit listed applications with the 6.0L Vortec V8 in the Fitment table above. Do not rely on engine size alone; year, model, and 2WD/RWD drivetrain must also match.
Q6: What is the difference between Long Tube Only and Long Tube with Y-Pipe?
A6: Long Tube Only is for buyers who want the header section and plan to use or fabricate the rest of the mid-section exhaust. Long Tube with Y-Pipe includes the Y-pipe section and is better for buyers planning a more complete header-to-mid-section upgrade. Final fitment still depends on your exact vehicle and exhaust layout.
Q7: Do I need a tune after installing long tube headers?
A7: A tune may be recommended depending on your setup. Long tube headers can change exhaust flow and sensor behavior, especially when paired with other exhaust or intake modifications. For best drivability and performance, consult a qualified tuner or installer.
Q8: Will these headers cause a check engine light?
A8: A check engine light is possible on some builds. CEL risk depends on O2 sensor condition, sensor placement, catalytic converter setup, tune, exhaust configuration, and installation quality. The header design includes O2 sensor provisions, but it cannot guarantee that every vehicle will remain CEL-free.
Q9: Do I need O2 sensor extensions?
A9: Some setups may require O2 sensor extensions or wiring adjustments depending on sensor location and exhaust routing. Check sensor reach during test fitment before final installation.
Q10: Will I need to modify the Y-pipe or mid-pipe?
A10: It depends on your selected product option and current exhaust setup. Vehicles with aftermarket exhaust, rusted exhaust hardware, or previous custom work may need adjustment, fabrication, or additional parts.
Q11: Can these headers fix an exhaust tick or manifold leak?
A11: They may help when the source of the problem is a leaking or restrictive factory manifold area, but they are not a guaranteed repair for every exhaust tick. Broken bolts, warped sealing surfaces, gasket issues, or other engine problems should be inspected before installation.
Q12: How much horsepower will these long tube headers add?
A12: There is no guaranteed horsepower number. Long tube headers may support better power and torque when combined with the right tune, intake, exhaust, and engine condition. Results vary from vehicle to vehicle.
Q13: Will these headers make my truck louder?
A13: Yes, long tube headers can make the exhaust tone deeper and more aggressive, especially when paired with a freer-flowing exhaust system. Final sound depends on the muffler, catalytic converter setup, Y-pipe, and cat-back exhaust.
Q14: Are these headers street legal?
A14: Exhaust laws vary by state, country, and inspection area. The buyer is responsible for checking local emissions and noise regulations before installation. Do not assume this product is legal for all street-driven vehicles.
Q15: What comes in the kit?
A15: The kit includes the selected long tube header setup and installation hardware/gaskets according to the variant you choose. The Long Tube with Y-Pipe option includes the Y-pipe section; the Long Tube Only option does not include the same mid-section configuration.
Q16: How hard is the installation?
A16: Installation difficulty is moderate to advanced. Older trucks may have rusted or broken manifold bolts, tight clearance, and exhaust connection issues. Professional installation is recommended, especially if you do not have header installation experience.
Q17: How long does delivery usually take?
A17: Most orders are delivered within 7-9 business days after shipment, depending on warehouse availability and destination.
Q18: What should I do if I am unsure about fitment?
A18: Contact customer support before ordering. Provide your year, make, model, engine size, drivetrain, and any exhaust modifications so support can help with basic fitment questions.