NRP BMW S55 F8X M2/M3/M4 Catless Downpipes
NRP BMW S55 F8X M2/M3/M4 Catless Downpipes
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Description
Maximize the Performance of your F8X M2/M3/M4
We are proud to introduce the NightRunners Performance S55 3.5" Downpipes. These are the largest BMW S55 F8X M2/M3/M4 downpipes on the market. Upgrade from the stock S55 downpipes to the NRP 3.5" S55 catless downpipes for maximum airflow, power, and sound! Unlike other vendors who offer 3" downpipes, our 3.5" diameter design provides superior performance by allowing greater airflow, reducing back-pressure, and delivering significant horsepower and torque gains that are immediately noticeable. Expect up to a 30HP increase on a tuned BMW S55 with stock turbos, and even more on cars with upgraded turbos.
Larger Diameter for Enhanced Performance
Featuring a larger 3.5" diameter, these downpipes provide better performance compared to the standard 3" downpipes available from other vendors. This increase in size allows for greater airflow, resulting in improved power and efficiency.
Precision Fit
Designed using state-of-the-art 3D scanning and prototyping technology ensures that all of our downpipes fit just like OEM downpipes do.
Optimal Sensor Integration
Stainless steel O2 sensor bung locations are precisely mounted in the factory positions, maintaining the integrity of your vehicle’s exhaust system and ensuring seamless sensor integration.
Superior Construction
Constructed from mandrel-bent T304 stainless steel, these downpipes feature CNC velocity stack flanges at the turbo mount. The TIG-welded construction with V-band flanges guarantees durability and reliability, ensuring long-lasting performance without failure.
Flex Pipe
The flex pipe section helps reduce stress and unwanted vibration caused by heat and engine movement, enhancing the durability and performance of your exhaust system.
**WARNING:**
Catless Downpipes are for OFF ROAD USE ONLY. Using these will result in a check engine/service engine soon light. Federal and many state laws prohibit the removal, modification, or rendering inoperative of any part or element of design affecting emissions or safety on motor vehicles used for transporting persons or property on a public street or highway.
Return
At NightRunners Performance, we value your satisfaction and are committed to resolving any issues you may encounter with our products. Below is our comprehensive return policy, structured to ensure a smooth and fair process for all our customers.
Initial Steps for Return or Claim
- Original Place of Purchase: All claims and returns must begin with the original place of purchase. Refunds, if applicable, are issued through this point of sale.
- Product Removal: If you encounter a problem after installation, do not remove the product before receiving return authorization from the place of purchase. On-car diagnostics can be crucial in problem-solving.
Warranty Information
- Original Owner Warranty: Warranties are exclusive to the original owner. Replacement parts are available for purchase for second owners.
- Dealers and Direct Purchases: If you are a dealer or purchased directly from us, please use the designated form on our website for any claims or returns.
Order Cancellation and Returns
- Cancellation Policy: Orders cancelled more than 48 hours after placement incur a 20% raw-materials fee. This applies to all exhaust systems. For out-of-stock items, please allow 8 to 12 weeks for manufacturing.
- Cancellation Post-Shipment: Orders cannot be cancelled once they have been shipped.
- Return Window: Returns are accepted within 14 days from the delivery date.
Non-Returnable Items
- Electrical items such as exhaust valve controllers
- Installed items
- Custom or specially ordered exhaust systems
- Items without original packaging
- Items with undocumented shipping damage or mis-packaging
- Incomplete returns
- Items damaged due to misuse or improper installation
- Items returned over 14 days after delivery
- Preorder items
Returnable Items
- Subject to a 30% restocking fee
- Applies to in-stock items, excluding custom or specially ordered exhaust systems
Refund Process
- Approved refunds will be processed by the original place of purchase within 30 days of return authorization.
Discontinued Products
- In cases of warranty claims on discontinued products, we may offer repair services or substitute with a comparable product.
Warranty Coverage
- Covers manufacturer defects, excluding cosmetic changes or wear and tear.
- Warranty ceases upon product discontinuation.
- Applicable only to NightRunners Performance branded products.
Product Return Condition
- Products must return without signs of abuse, incorrect or forced installation, or alteration. Non-compliance will result in warranty voidance.
Shipping for Warranty Claims
- NightRunners Performance covers two-way shipping for manufacturer defect claims. A "Destroy in Field" request may be issued for defective parts.
Restocking Fee
- No restocking fee applies to returns due to manufacturer defects.
Exclusions
- Unauthorized product removal, offroad abuse, motorsport usage, or unauthorized modifications void the warranty.
Specific Product Warranties
- Detailed on our website for different product categories and parts.
Race Configuration Advisory
- Modifications like race configurations may impact vehicle diagnostics. Professional tuning or software adjustments are recommended.
Shipping Damages
- Follow the detailed claims process provided on our support page for shipping-related damages.
Exchanges and Partial Returns
- Exchanges necessitate a new order; partial returns are not accepted.
Fitment Issues
- Report immediately with detailed photos and videos for assistance. We may cover modification costs under certain conditions.
Product Discounts
- Specific conditions apply for post-purchase discounts. Contact customer service for guidelines.
Chargeback Policy
- Chargebacks are not accepted unless items are returned to us.
For further assistance or to initiate a return, please reach out to us at support@nightrunnersperformance.com. Our team is dedicated to providing you with prompt and effective solutions.
























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