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Designed for selected GM street stock applications equipped with Small Block Chevy V8 engines, these long tube headers are specifically intended for the listed Chevrolet Monte Carlo and Malibu, Pontiac Grand Prix, Oldsmobile Cutlass, and Buick Regal applications.
Constructed from T-304 stainless steel, the driver- and passenger-side headers feature a 4-into-1 long tube layout with a 1.65-inch inlet opening, 1.75-inch (1-3/4") primary tubing, a 3.5-inch major pipe section, and a 3.00-inch outlet. Because header clearance depends on the complete vehicle configuration, please review the fitment and installation requirements below before ordering.
| Make | Model | Year | Engine / Application |
|---|---|---|---|
| Chevrolet | Monte Carlo | 1972-1987 | Small Block Chevy V8 application |
| Chevrolet | Malibu | 1978-1987 | Small Block Chevy V8 application |
| Pontiac | Grand Prix | 1972-1987 | Small Block Chevy V8 application |
| Oldsmobile | Cutlass | 1978-1987 | Small Block Chevy V8 application |
| Buick | Regal | 1973-1987 | Small Block Chevy V8 application |
Fitment Note: Fitment depends on the complete vehicle configuration and not on engine displacement alone. Vehicle age, engine swaps, modified engine mounts, steering components, suspension changes, transmission changes, and previously modified exhaust systems may affect final header clearance.
For 1970-1981 Chevrolet Camaro applications, please use the separate XKV11078-C listing.
This XKV11078-G listing is intended only for the Monte Carlo, Malibu, Grand Prix, Cutlass, and Regal applications shown above.
Required configuration includes rear-wheel drive and automatic transmission. This application is not listed as compatible with manual transmissions, power steering, power brakes, or air conditioning.
Please verify your exact year, model, engine configuration, drivetrain, transmission, steering system, brake system, air-conditioning configuration, engine position, and available chassis clearance before ordering.
Do not purchase based on Small Block Chevy engine size alone. A compatible SBC engine does not by itself confirm vehicle-level header fitment.
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The exhaust header is the first section of the exhaust system and mounts directly to the engine. Its role is to collect exhaust gases from each cylinder and route them into the rest of the exhaust system.
Compared to many factory manifolds, header designs often focus on smoother internal flow and more uniform exhaust routing before gases move downstream.
Designed to meet packaging, cost, and emissions requirements
Prioritizes durability and compliance across broad use cases
Designed with exhaust flow characteristics in mind
Built for higher exhaust temperatures and specific vehicle platforms
Commonly used as part of an exhaust system configuration
Products on this site are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, or legal for use on public roads unless explicitly stated.
Some products may remove, replace, relocate, disable, or alter emissions-related components, including but not limited to catalytic converters, EGR, DPF, SCR, DOC, O2 sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes or drivability issues.
Professional installation is recommended. Buyers are responsible for verifying product compatibility, local regulations, emissions requirements, and any required tuning or supporting modifications before purchase and installation.
Performance gains, sound changes, airflow improvements, temperature changes, fuel economy changes, fitment, and drivability results may vary. No specific performance gains are guaranteed.
