90-91 Acura Integra 4-1 Style Performance Header - Stainless Steel
K2 Industries
90-91 Acura Integra 4-1 Style Performance Header - Stainless Steel
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Eligible returns within 30 days of receipt. Items must be unused, with original packaging and all included parts. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.
Product information from K2 Industries
Manufacturer warranty and guarantee statements below are subject to that manufacturer’s terms. For return eligibility through Lee Mods, see Returns & Exchanges. Ask Lee Mods to clarify any warranty or guarantee before ordering.
90-91 Acura Integra 4-1 Style Performance Header — Stainless Steel
Stainless steel 4-1 header engineered to improve exhaust scavenging and flow on your DA platform Integra. Purpose-built geometry merges four runners into one collector for cleaner power delivery across the RPM band. Corrosion-resistant construction handles heat cycles without degradation.
Key Features
- 4-1 Merge Collector - Reduces backpressure and improves cylinder scavenging versus stock cast iron manifold
- Stainless Steel Construction - Resists rust and thermal cycling without coating failure or flaking
- Performance Tuned Runners - Optimized diameter and length for DA-series naturally aspirated power
Specs
- Material: Stainless Steel
- Configuration: 4-1 Collector Design
- Condition: New
Whats Included
- Header Assembly
Frequently Asked Questions
Do I need new gaskets and bolts when installing this header?
Yes—you'll want fresh header gaskets to seal properly at the head. Reusing old gaskets risks exhaust leaks. Mounting bolt spec depends on your engine's service manual; have those on hand before you start.
Can I bolt this directly to stock exhaust, or do I need new piping?
The collector outlet diameter determines what fits downstream. Test-fit the header to your existing exhaust before final install—you may need an adapter or custom section to avoid gaps or interference.
Does this header need ceramic coating or heat wrap?
Stainless resists corrosion on its own, but heat management is up to you. Many builders wrap headers for underhood temperature control and sound isolation—neither is required, but both improve longevity and comfort.
Your vehicle
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Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-4763-HON-006-EC |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
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Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information