Upgrade your exhaust system with the Hooker Competition Exhaust Header 3902-1HKR, specifically designed for Oldsmobile's 400-455 engines. Crafted from durable 16 gauge mild steel and sporting an advanced metallic ceramic coating, these headers deliver optimal exhaust scavenging and velocity through their precision-tuned length tubes. Enjoy a significant reduction in back pressure thanks to the long transition collector design, enhancing both horsepower and torque. The exhaustive engineering also includes mandrel-bent tubing to maintain maximum metal strength and a perfect sealing surface ensured by 5/16-inch machined flanges for each exhaust port. These headers not only meet but exceed competitive performance standards, making them indispensable for DIY enthusiasts and professional mechanics aiming to enhance their vehicle's performance. Equip your ride with these robust headers with confidence, as they're engineered to provide the perfect fit and require minimal maintenance for long-lasting performance. Replace your old, rusted exhaust manifolds with these high-performance components and relish the improved sound and power output. With Hooker, you're investing in quality that stands the test of time.

• Tuned length tubes maximize exhaust scavenging & velocity
• Ceramic coating offers durability and heat resistance
• Reducing back pressure boosts engine performance
• Mandrel-bent tubing ensures smooth airflow
• Precise 5/16 in. flange ensures top-notch fit
• Durable welds guarantee structural integrity
• Includes all necessary installation hardware

Application:	Automotive
Coated Finish:	Metallic Ceramic
Collector Diameter:	3 in.
Engine Make/Size:	Olds 400-455
Finish:	Silver Metallic Ceramic
Head Style:	Long-Tube
Material:	Stainless Steel
Primary Tube Diameter:	1.750 in.
Tube Direction:	Down Swept
WARNING CA Proposition 65:	Yes

• 1965-1969 Oldsmobile 442 | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1965-1967 Oldsmobile Cutlass | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1971 Oldsmobile 442 | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1970-1975 Oldsmobile Cutlass | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1968-1971 Oldsmobile 442 | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;With Air Conditioning;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1968 Oldsmobile Cutlass | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;With Air Conditioning;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1970-1972 Oldsmobile Cutlass | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;With Air Conditioning;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1971-1975 Oldsmobile Delta 88 | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1971-1974 Oldsmobile Vista Cruiser | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1975 Oldsmobile Cutlass Salon | Note: Metallic Ceramic Coating; Tube Size 1.75 in. OD x 27 in.; Collector Size 3 in. OD x 8 in.;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty