304 Stainless Long Tube Headers for 1988-1998 Chevy and GMC 4WD Trucks and SUVs
Certified Automotive Experts 304 stainless steel long tube headers are built for 1988-1998 Chevrolet and GMC 4WD K1500 and K2500 pickups, Blazer, Tahoe, Yukon and Suburban with the 5.0L or 5.7L small block V8, TBI or Vortec. 1-5/8" primaries and 2-1/2" collectors improve exhaust flow for more horsepower and torque in the mid to high RPM range.
4WD only. These headers do not fit 2WD (C1500 / C2500) trucks or SUVs, or the 1999 and newer new-body Silverado and Sierra.
Key Features
• 16-gauge mandrel-bent 304 stainless steel tubing
• 1-5/8" primary tubes, 2-1/2" collectors
• TIG-welded joints for strength and crack resistance
• CNC laser-cut 5/16" head flanges
• Polished finish with strong corrosion resistance
What's Included
• Driver and passenger long tube headers
• Pair of 2.5" 3-bolt collectors
• Copper header gaskets
• Copper collector gaskets
• Header bolts and collector bolt kit
| Feature | Specification |
|---|---|
| Brand | Certified Automotive Experts |
| Product Type | Long Tube Exhaust Headers |
| Vehicle Platform | Chevy & GMC GM OBS C/K Trucks |
| Model Years | 1988–1998 |
| Compatible Models | C1500, C2500, K1500, K2500 |
| Material | 304 Stainless Steel |
| Material Gauge | 16 Gauge |
| Primary Tube Diameter | 1-5/8 Inches |
| Collector Diameter | 2.5 Inches |
| Flange Thickness | 5/16 Inch |
| Flange Construction | CNC Laser-Cut |
| Tube Construction | Mandrel-Bent |
| Welding | TIG-Welded |
| Finish | Polished Stainless Steel |
| Header Configuration | Long Tube |
| Intended Application | Performance Exhaust Systems |
| Additional Fitment | Some 1999–2000 Classic Carryover Applications |
These headers are designed for compatible GM OBS truck configurations, including:
| Vehicle | Model Years |
|---|---|
| Chevrolet C1500 | 1988–1998 |
| Chevrolet C2500 | 1988–1998 |
| Chevrolet K1500 | 1988–1998 |
| Chevrolet K2500 | 1988–1998 |
| GMC C/K Trucks | Compatible 1988–1998 Configurations |
| GM Classic Carryover Models | Select 1999–2000 Applications |
Important: Compatibility depends on the exact engine, drivetrain, vehicle configuration, and available installation clearance. Verify your specific application before ordering.
Manufactured from 16-gauge 304 stainless steel, these headers combine durable construction with corrosion-resistant material properties.
The mandrel-bent tubing helps maintain a consistent internal diameter throughout the bends, supporting efficient exhaust flow. TIG-welded joints provide durable connections designed to withstand the heat and vibration associated with performance exhaust systems.
The polished stainless steel finish provides a professional appearance while offering excellent resistance to corrosion, making these headers suitable for classic truck restorations, street builds, and custom exhaust installations.
The long tube configuration features 1-5/8-inch primary tubes and 2.5-inch collectors, designed to provide an efficient exhaust path for compatible GM truck engines.
By improving exhaust flow, this configuration is engineered to support increased horsepower and torque, particularly through the mid- to high-RPM range.
These headers are a performance-oriented option for truck owners upgrading their factory exhaust configuration or building a custom performance exhaust system.
Long tube headers can require additional clearance compared with factory exhaust manifolds. Depending on your truck's configuration, minor modifications or component adjustments may be necessary during installation.
Potential clearance considerations include:
Factory column-shift linkage.
Power steering pump bracket.
Steering and surrounding engine-bay components.
Other vehicle-specific components affecting exhaust routing.
Some installations may require repositioning, trimming, or adjusting certain components to achieve proper clearance.
These requirements can vary depending on the vehicle's drivetrain, factory options, and existing modifications. Professional installation or assistance from an experienced exhaust specialist is recommended.
1. What vehicles do these long tube headers fit?
They are designed for compatible 1988–1998 Chevy and GMC C/K-series trucks, including Chevrolet C1500, C2500, K1500, and K2500 applications. Compatible GMC configurations are also included.
2. What material are these headers made from?
They are constructed from 16-gauge 304 stainless steel with mandrel-bent tubing and TIG-welded joints for durable construction and corrosion resistance.
3. What size are the primary tubes?
The primary tubes measure 1-5/8 inches in diameter.
4. What size are the collectors?
The collectors measure 2.5 inches in diameter.
5. How thick are the header flanges?
The headers feature CNC laser-cut flanges measuring 5/16 inch thick.
6. What is the benefit of 304 stainless steel headers?
304 stainless steel offers excellent corrosion resistance and durability. It is a suitable material for exhaust systems exposed to heat, moisture, and changing environmental conditions.
7. Do these long tube headers improve engine performance?
The long tube design is engineered to improve exhaust flow and support increased horsepower and torque, particularly in the mid- to high-RPM range. Actual results depend on engine specifications and the complete exhaust setup.
8. Will these headers bolt directly onto my truck?
Fitment depends on the specific vehicle configuration. Some installations may require minor clearance adjustments around components such as the factory column-shift linkage or power steering pump bracket.
9. Are these headers compatible with 1999–2000 Chevy and GMC trucks?
Some 1999–2000 Classic carryover applications may be compatible. However, fitment is not universal, so verify the exact vehicle, engine, and configuration before ordering.
10. Are these headers suitable for custom exhaust systems?
Yes. Their long tube configuration and 2.5-inch collectors are designed for compatible performance exhaust setups. Additional exhaust fabrication may be necessary depending on your application.
11. Is professional installation recommended?
Yes. Because long tube headers may require additional clearance or minor component modifications, installation by an experienced mechanic or exhaust professional is recommended.
Before ordering, verify:
Exact vehicle year, make, and model.
Engine configuration and compatibility.
C/K-series drivetrain and 2WD or 4WD setup.
Column-shift linkage clearance.
Power steering pump bracket clearance.
Collector and exhaust system compatibility.
Available space around surrounding engine-bay components.
Important Fitment Notice: Designed for compatible 1988–1998 Chevy and GMC C/K-series truck applications, with select 1999–2000 Classic carryover fitment. Vehicle year alone does not guarantee compatibility. Minor clearance adjustments or installation modifications may be required depending on your specific truck.
WARNING: RACE / COMPETITION USE ONLY
This part is built and sold only for racing vehicles used solely in closed-course competition. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. Off-road or off-highway use is not competition use. Installing this part on a vehicle used on public roads may violate the federal Clean Air Act, 42 U.S.C. 7522(a)(3), and state law, and may result in civil or criminal penalties, failed inspections and loss of registration. Emissions laws vary by state. Check yours before you buy.
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. THE SALE, USE OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. 7522(a)(3)).
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