Capristo 100 Cell OPF Replacement Pipes for Porsche 718 GT4RS 2021-2025
High-performance 100-cell sports catalytic converters crafted from T309 (1.4828) stainless steel with a hand-polished mirror finish. Designed to maximize airflow and increase engine power.
Key Specifications & Warnings
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Material: T309 (1.4828) Grade Stainless Steel, hand-polished mirror finish.
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Catalytic Converters: 100-cell substrate (ultra-high-flow design).
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Flow Technology: Lower cell count = larger holes per square inch = maximized exhaust gas flow.
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Use Case: Recommended For Off-Road and Track Use Only.
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CEL Alert: Replacing OEM Catalytic Converter/s will trigger a Check Engine Light (CEL).
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CEL Solution: Recurring CEL requires ECU tuning.
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Critical Legal Notice:
Use of sports catalytic converters, replacement pipes, or manual valve controls (CES-3/EVCU-1) is illegal on public roads in some regions (e.g., certain US states).
Buyer must verify local compliance.
Exclusively for closed-course/racing use. Public road operation at your own risk.
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Safety Warning:
NEVER rev engine while stationary – exhaust flames may cause property damage or severe injury.
Fitment Chart:
| Make |
Model |
Year |
Porsche
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718 GT4RS
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2021-2025
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⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Price Match Guarantee:
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We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
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Project Incentives:
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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
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• AH180 — $180 OFF $3000+ | • AH400 — $400 OFF $6000+
• AH630 — $630 OFF $9000+
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Leveraging our massive supply chain, we secure hard-to-find components that other shops can't access. Whether it's a standard upgrade or a custom exotic application, we have the network to get it to your door.
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Direct Consultation:
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Our experts will review your specifications and provide written confirmation for your build.
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Secure Shipping:
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We offer FREE Ground Shipping within the 48 contiguous United States. Most in-stock orders process within 48 hours. For your security, high-value performance parts require a signature upon delivery to ensure they reach you safely.
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Transit Protection:
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Please inspect your order immediately. Damage must be reported within 48 hours. For freight/LTL items, if you cannot inspect the contents immediately, please write "Subject to Inspection" on the delivery receipt before signing.
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Flexible Returns:
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Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand-new, untampered components, parts that have been installed, modified, or used are non-returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Need assistance? Reach out via our
Contact Form before shipping any items back so we can provide you with an RMA number.
Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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Verify Your Build:
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If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
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Our Promise:
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When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
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Questions? Send us your
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