SPELAB Exhaust Header for 1994-2004 Chevy S10

Stainless Steel Exhaust Header for 1994–2004 Chevy S10

The SPELAB stainless steel exhaust header is for 1994–2004 Chevrolet S10 exhaust applications. The mirror-polished assembly includes a four-runner header with separate connection pipes and a slotted sleeve. Match the head flange and pipe route to the actual vehicle during installation.

Best For

• Exhaust-manifold replacement on the listed Chevrolet S10 application.
• Front-exhaust refreshes using a matched header, connection pipes and sealing joints.
• S10 exhaust work planned around the actual engine-side flange, chassis and downstream route.

Four Runners with Separate Connection Pipes

The SPELAB S10 assembly collects the four primary runners into the outlet route. Separate formed pipes and a sleeve support assembly of the front-exhaust connections.

Sound, drivability and engine output depend on the installed engine and complete exhaust system. Proper sealing and supported pipe alignment are essential parts of the installation.

Specs

What’s Included

Vehicle & Engine Fitment

Select the SPELAB S10 assembly against the vehicle’s head-port layout, bolt pattern, downstream joints and chassis routing. Check the installed engine and drivetrain as part of the complete connection check.

Before You Order & Install

• Engine-side connection: compare the head-port shape, mounting pattern and sealing face with the actual vehicle.
• Pipe assembly: match the formed pipes and sleeve to their intended joints. Support the downstream exhaust and align the assembly without forcing the flanges.
• Clearance: trial-fit around steering, mounts, transmission, frame and surrounding lines through the required movement.
• Seals and hardware: match each gasket, spring and fastener to its joint; inspect retained studs, threads and supports before assembly.
• Required equipment: restore the sensors, catalysts, auxiliary connections and heat protection required for the actual S10 configuration and intended use.

Will the ECU Need Tuning?

Have a qualified technician assess the actual engine, fuel system, sensors and complete exhaust before calibration work. Complete the mechanical installation and diagnose leaks or sensor faults first. Calibration does not correct interference, leaking joints or mismatched connections.

Installation Overview

This is a general installation overview. Follow the service procedure for the actual vehicle. Professional installation is recommended.

1. Check the vehicle and parts. Match the vehicle and engine to Fitment. Compare the header ports, mounting pattern, joint seals and downstream connections before removing the original assembly.
2. Cool and support the vehicle. Allow the engine and exhaust to cool completely. Use a suitable lift or rated stands on a firm level surface; never work beneath a vehicle supported only by a jack.
3. Record connections and remove the original assembly. Record the sensor, auxiliary-system, heat-shield and support connections. Support the downstream exhaust and remove the affected parts under the actual vehicle service procedure.
4. Prepare the joints. Inspect threads, sealing faces, retained pipes and supports. Clean the mating surfaces and replace damaged fasteners. Match the correct gasket and hardware to each joint.
5. Trial-fit the complete route. Trial-fit the header assembly and supported downstream pipes. Check steering, mounts, starter, wiring, lines and surrounding components through their required movement. Resolve contact or forced alignment before final tightening.
6. Secure and restore connections. Tighten the matched joints under the applicable vehicle and component requirements. Restore required sensors, catalysts, auxiliary equipment, supports and heat protection.
7. Check sealing and operation. Run the engine in a well-ventilated area and inspect for leaks, contact, abnormal sounds and warning lights. Investigate faults before use and recheck the cooled assembly under the applicable service procedure.

Frequently Asked Questions

Which model years are listed?

The SPELAB Chevrolet S10 header application covers the listed 1994–2004 model-year range. Match the actual head flange, pipe joints and chassis route when selecting the assembly.

Does the package contain a pair of bank headers?

The SPELAB S10 package shows one four-runner header assembly, separate connection pipes and a sleeve. Select the package by its actual engine-side mounting pattern rather than assuming a two-bank header pair.

What accessories are shown?

The SPELAB S10 assembly shows two formed connection pipes, one slotted sleeve, a four-port head gasket, a pipe-joint gasket and spring / bolt / nut hardware.

What should be checked during installation?

Trial-fit the SPELAB S10 header and supported pipes, then check steering, engine mounts, transmission, frame and surrounding lines. Match the required sensor connections and resolve contact or forced joint alignment before tightening.

Warranty & Customer Support

A one-year limited warranty from delivery covers qualifying material and workmanship defects under normal use for the original purchaser. Proof of purchase is required. Improper installation, alteration and modification are excluded, as are installation and removal labor costs.

Returns within 30 days are subject to product condition and the applicable shipping terms. Read the Warranty & Return Policy for eligibility and claim procedures.

For fitment questions or an order issue, email service@spelabautoparts.com or call +1 888 301 8666. Hours: Monday–Friday, 9:00 AM–6:00 PM EDT. Share your vehicle year, model, engine, chosen style and relevant photos; include the order number for an existing purchase.