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Description
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Description
- Product By DNA Motoring | SKU: HDS-PF82
- Aftermarket Exhaust Header For 1978 to 1991 Buick / Chevy / Oldsmobile / Pontiac Small Block Engine
- Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends
- O2 Sensor Bung Insertion and Metal Gasket Included
- 3-Bolt Flange
- Maximizing Smoothest High Exhaust Air Flow Rate
- Design to Reduce Air Flow Restriction To Achieve Higher Horsepower and Throttle Respond
- TIG Welded CNC Machine Flange for Resistance against Pressure and Corrosion
- Provide Aggressive Deeper Exhaust Note
- Direct Bolt-On Installation, Requires No Modification.
- Professional Installation is Highly Recommended (No Instruction Included).
The exhaust manifolds found in the 1978-1991 Buick Chevy Oldsmobile and Pontiac Small Block engine were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 Mid-Length off-road headers are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the 4.9(301ci), 5.0L(305ci) and 5.7(350ci) engines. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.
Vehicle Fitment
- 1978-1991 Buick / Chevy / Oldsmobile / Pontiac Small Block Engine
- 305-350 CID Small Block Engine
- Factory Y-Pipe is Not Compatible WithThis Headers
Specification
- Include: Performance Exhaust Header
- Brand: DNA Motoring
- Style: Performance / Racing
- Material: T-304 Stainless Steel
- Inlet/ Outlet: 1.50"/ 2.50"
- 3-Bolt Flange
- Direct Bolt-On Installation, Requires No Modification
Warranty
- 90-Days Manufacturer Warranty on Defect