DeatschWerks [91-01 Integra / 92-00 Civic] 450cc Fuel Injectors, Matched Set of 4 - Black

Product Line Copy will be found here. Matched set of 4 450cc injectors for Honda/Acura B/D/F/H Series

The DeatschWerks DWK18U-04-0450-4 is a matched set of four 450cc fuel injectors designed for Honda and Acura B, D, and H Series applications. These injectors support OBD I and OBD II configurations and provide consistent fuel delivery for performance-focused street and track vehicles.

• Application: [91-01 Integra / 92-00 Civic] with compatible Honda and Acura B/D/H Series engines
• Configuration: Matched set of 4 injectors with 450cc flow capacity

Each injector is matched to help maintain consistent fuel delivery across all cylinders, supporting reliable tuning and balanced engine operation. The 450cc capacity is suited to upgraded naturally aspirated or forced-induction fuel systems when properly selected for the engine’s power level, fuel type, and tuning requirements. This set is intended for automotive use and is supplied as one complete matched set.

DeatschWerks part number DWK18U-04-0450-4 is designed for select Honda and Acura B, D, and H Series applications, including compatible 1991-2001 Acura Integra and 1992-2000 Honda Civic vehicles. Verify engine configuration, injector connector style, fuel system requirements, and ECU calibration before installation. These injectors are not CARB approved, and installation may require acknowledgment of applicable emissions restrictions. Professional installation and custom tuning are recommended to ensure proper fuel pressure, injector characterization, and safe engine operation.

Features:

• Brand: DeatschWerks
• Part Number: DWK18U-04-0450-4
• Flow Rate: 450cc fuel injectors
• Quantity: Matched set of 4
• Application: Honda and Acura B, D, and H Series engines
• Vehicle Coverage: [91-01 Integra / 92-00 Civic]
• Compatibility: Supports select OBD I and OBD II configurations
• Emissions Status: Not CARB approved; verify local emissions requirements before installation

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Units Per Sku: 1
Regular Stock: t
Fitment:
Acura Integra GS 1990
Acura Integra GS 1991
Acura Integra GS 1992
Acura Integra GS 1993
Acura Integra GS 1997
Acura Integra GS 1998
Acura Integra GS 1999
Acura Integra GS 2000
Acura Integra GS 2001
Acura Integra GS-R 1992
Acura Integra GS-R 1993
Acura Integra GS-R 1994
Acura Integra GS-R 1995
Acura Integra GS-R 1996
Acura Integra GS-R 1997
Acura Integra GS-R 1998
Acura Integra GS-R 1999
Acura Integra GS-R 2000
Acura Integra GS-R 2001
Acura Integra LS 1986
Acura Integra LS 1987
Acura Integra LS 1988
Acura Integra LS 1989
Acura Integra LS 1990
Acura Integra LS 1991
Acura Integra LS 1992
Acura Integra LS 1993
Acura Integra LS 1994
Acura Integra LS 1995
Acura Integra LS 1996
Acura Integra LS 1997
Acura Integra LS 1998
Acura Integra LS 1999
Acura Integra LS 2000
Acura Integra LS 2001
Acura Integra LS Special Edition 1987
Acura Integra LS Special Edition 1988
Acura Integra RS 1986
Acura Integra RS 1987
Acura Integra RS 1988
Acura Integra RS 1989
Acura Integra RS 1990
Acura Integra RS 1991
Acura Integra RS 1992
Acura Integra RS 1993
Acura Integra RS 1994
Acura Integra RS 1995
Acura Integra RS 1996
Acura Integra RS 1997
Acura Integra RS 1998
Acura Integra Special Edition 1995
Acura Integra Special Edition 1996
Acura Integra Type R 1997
Acura Integra Type R 1998
Acura Integra Type R 2000
Acura Integra Type R 2001
Honda Accord 10th Anniversary 1993
Honda Accord 25th Anniversary Edition 1996
Honda Accord DX 1987
Honda Accord DX 1988
Honda Accord DX 1989
Honda Accord DX 1990
Honda Accord DX 1991
Honda Accord DX 1992
Honda Accord DX 1993
Honda Accord DX 1994
Honda Accord DX 1995
Honda Accord DX 1996
Honda Accord DX 1997
Honda Accord DX 1998
Honda Accord DX 1999
Honda Accord DX 2000
Honda Accord DX 2001
Honda Accord DX 2002
Honda Accord EX 1990
Honda Accord EX 1991
Honda Accord EX 1992
Honda Accord EX 1993
Honda Accord EX 1994
Honda Accord EX 1995
Honda Accord EX 1996
Honda Accord EX 1997
Honda Accord EX 1998
Honda Accord EX 1999
Honda Accord EX 2000
Honda Accord EX 2001
Honda Accord EX 2002
Honda Accord LX 1987
Honda Accord LX 1988
Honda Accord LX 1989
Honda Accord LX 1990
Honda Accord LX 1991
Honda Accord LX 1992
Honda Accord LX 1993
Honda Accord LX 1994
Honda Accord LX 1995
Honda Accord LX 1996
Honda Accord LX 1997
Honda Accord LX 1998
Honda Accord LX 1999
Honda Accord LX 2000
Honda Accord LX 2001
Honda Accord LX 2002
Honda Accord LXi 1987
Honda Accord LXi 1988
Honda Accord LXi 1989
Honda Accord SE 1991
Honda Accord SE 1993
Honda Accord SE 1997
Honda Accord SE 2000
Honda Accord SE 2002
Honda Accord SEi 1989
Honda Accord Value Package 1996
Honda Accord Value Package 1997
Honda Accord Value Package 2001
Honda Accord Value Package 2002
Honda Civic Base 1986
Honda Civic Base 1987
Honda Civic Base 1988
Honda Civic Base 1989
Honda Civic Base 1990
Honda Civic Base 1991
Honda Civic CRX 1986
Honda Civic CRX 1987
Honda Civic CRX HF 1986
Honda Civic CRX HF 1987
Honda Civic CRX Si 1986
Honda Civic CRX Si 1987
Honda Civic CX 1992
Honda Civic CX 1993
Honda Civic CX 1994
Honda Civic CX 1995
Honda Civic CX 1996
Honda Civic CX 1997
Honda Civic CX 1998
Honda Civic CX 1999
Honda Civic CX 2000
Honda Civic DX 1986
Honda Civic DX 1987
Honda Civic DX 1988
Honda Civic DX 1989
Honda Civic DX 1990
Honda Civic DX 1991
Honda Civic DX 1992
Honda Civic DX 1993
Honda Civic DX 1994
Honda Civic DX 1995
Honda Civic DX 1996
Honda Civic DX 1997
Honda Civic DX 1998
Honda Civic DX 1999
Honda Civic DX 2000
Honda Civic EX 1990
Honda Civic EX 1991
Honda Civic EX 1992
Honda Civic EX 1993
Honda Civic EX 1994
Honda Civic EX 1995
Honda Civic EX 1996
Honda Civic EX 1997
Honda Civic EX 1998
Honda Civic EX 1999
Honda Civic EX 2000
Honda Civic GX 1998
Honda Civic GX 1999
Honda Civic GX 2000
Honda Civic HX 1996
Honda Civic HX 1997
Honda Civic HX 1998
Honda Civic HX 1999
Honda Civic HX 2000
Honda Civic LX 1988
Honda Civic LX 1989
Honda Civic LX 1990
Honda Civic LX 1991
Honda Civic LX 1992
Honda Civic LX 1993
Honda Civic LX 1994
Honda Civic LX 1995
Honda Civic LX 1996
Honda Civic LX 1997
Honda Civic LX 1998
Honda Civic LX 1999
Honda Civic LX 2000
Honda Civic RT 4WD 1988
Honda Civic RT 4WD 1989
Honda Civic RT 4WD 1990
Honda Civic RT 4WD 1991
Honda Civic Si 1986
Honda Civic Si 1987
Honda Civic Si 1989
Honda Civic Si 1990
Honda Civic Si 1991
Honda Civic Si 1992
Honda Civic Si 1993
Honda Civic Si 1994
Honda Civic Si 1995
Honda Civic Si 1999
Honda Civic Si 2000
Honda Civic Value Package 1999
Honda Civic VX 1992
Honda Civic VX 1993
Honda Civic VX 1994
Honda Civic VX 1995
Honda Civic Wagovan 1988
Honda Civic Wagovan 1989
Honda Civic del Sol S 1993
Honda Civic del Sol S 1994
Honda Civic del Sol S 1995
Honda Civic del Sol S 1996
Honda Civic del Sol S 1997
Honda Civic del Sol Si 1993
Honda Civic del Sol Si 1994
Honda Civic del Sol Si 1995
Honda Civic del Sol Si 1996
Honda Civic del Sol Si 1997
Honda Civic del Sol VTEC 1994
Honda Civic del Sol VTEC 1995
Honda Civic del Sol VTEC 1996
Honda Civic del Sol VTEC 1997
Honda CRX Base 1989
Honda CRX Base 1990
Honda CRX Base 1991
Honda CRX DX 1988
Honda CRX HF 1988
Honda CRX HF 1989
Honda CRX HF 1990
Honda CRX HF 1991
Honda CRX Si 1988
Honda CRX Si 1989
Honda CRX Si 1990
Honda CRX Si 1991
Honda Prelude 2.0 S 1988
Honda Prelude 2.0 S 1989
Honda Prelude 2.0 S 1990
Honda Prelude 2.0 Si 1985
Honda Prelude 2.0 Si 1986
Honda Prelude 2.0 Si 1987
Honda Prelude 2.0 Si 1988
Honda Prelude 2.0 Si 1989
Honda Prelude 2.0 Si 1990
Honda Prelude 2.0 Si 1991
Honda Prelude 2.0 Si 4WS 1988
Honda Prelude 2.0 Si 4WS 1989
Honda Prelude Base 1985
Honda Prelude Base 1986
Honda Prelude Base 1987
Honda Prelude Base 1997
Honda Prelude Base 1998
Honda Prelude Base 1999
Honda Prelude Base 2000
Honda Prelude Base 2001
Honda Prelude S 1992
Honda Prelude S 1993
Honda Prelude S 1994
Honda Prelude S 1995
Honda Prelude S 1996
Honda Prelude SE 1995
Honda Prelude Si 1990
Honda Prelude Si 1991
Honda Prelude Si 1992
Honda Prelude Si 1993
Honda Prelude Si 1994
Honda Prelude Si 1995
Honda Prelude Si 1996
Honda Prelude Si 4WS 1990
Honda Prelude Si 4WS 1991
Honda Prelude Si 4WS 1992
Honda Prelude Si 4WS 1993
Honda Prelude Si 4WS 1994
Honda Prelude Si ALB 1990
Honda Prelude Si ALB 1991
Honda Prelude Type SH 1997
Honda Prelude Type SH 1998
Honda Prelude Type SH 1999
Honda Prelude Type SH 2000
Honda Prelude Type SH 2001
Honda Prelude VTEC 1993
Honda Prelude VTEC 1994
Honda Prelude VTEC 1995
Honda Prelude VTEC 1996

At JDMuscle, we understand that fast and reliable shipping is crucial. With multiple distribution centers across the nation, most in-stock items are shipped within 1-2 business days. On average, you can expect delivery within 1-5 business days for in-stock items. Please note, however, that some products may ship directly from vendors, which could result in additional delays. Products sourced from overseas may also take longer to arrive.

Free Shipping over $199 Policy

• Free shipping is available only for the 48 contiguous states in the U.S.
• Ground shipping applies to regular-sized items only.
• Oversized items such as lips, hoods, and trunks requiring freight shipping are not included in the free shipping program.
• Some manufacturers may impose a shipping surcharge, which will be excluded from the free shipping program.
• The most accurate shipping costs will be displayed at checkout. If you believe the shipping cost is incorrect, please contact us at sales@jdmuscleusa.com for further review.

Carriers

We ship via FedEx, UPS, USPS, and DHL. While we strive to use the most efficient option, we cannot guarantee which carrier will deliver your order. Your items may arrive in multiple packages through different carriers.

Processing Time and Shipping Cut-off

Orders typically take 24 hours to process, with shipping cut-off at 3:00 PM EST. Transit times vary based on location and carrier. Some items, especially those requiring freight shipping, may have extended processing and delivery times. For freight shipping inquiries, contact us at sales@jdmuscleusa.com.

 

International and Special Shipping Considerations

• International orders are subject to higher shipping fees. If you would like to review your shipping cost, email us at sales@jdmuscleusa.com with your full address and items you plan to purchase.
• In some cases, shipping costs may be incorrectly calculated for international or oversized items. We reserve the right to adjust the shipping fee and will work with you to negotiate a fair cost if needed.
• Customers can challenge and request a review of international shipping fees, and we’ll do our best to find a lower rate where possible.
• Customs Fees & Import Taxes: The shipping charge you pay does not include customs fees or import taxes. These charges vary by country and are the customer’s responsibility. Please check with your local customs office for more details before placing an order.
• Shipping Cost Adjustments: Shipping rates fluctuate, and while we strive to provide the most competitive rates, there may be instances where the shipping cost you paid is significantly lower than the actual cost. In such cases, we reserve the right to request the difference to ensure we cover our basic expenses. We appreciate your understanding and will always aim to keep shipping costs as affordable as possible.

 

Address Modifications and Fees

• Any modifications to a shipping address after an order is placed may be subject to additional fees.
• For single, small packages, the flat fee is $20. For larger or multiple packages, the fee may be up to $60 or more.

Freight Shipping Guidelines

• Freight shipments require you to be present at the time of delivery.
• The delivery driver may provide a delivery receipt (Bill of Lading). It is crucial to inspect the shipment before signing.
• Carefully check the packaging for any visible damage (dents, punctures, rips) and notate it on the Bill of Lading.
• Open the package and inspect the product itself. If damage is found, document it in detail on the Bill of Lading, take photos, and contact the shipping company to initiate a damage claim.
• Do not refuse the shipment. Contact us at sales@jdmuscleusa.com for guidance.
• If the delivery driver is unable to wait for inspection, note this on the Bill of Lading.

Failure to document damages before signing the Bill of Lading will void any claims for refunds or replacements.

Pre-Installation Inspection Policy

We strongly recommend inspecting all parts or items upon arrival before installation. If you identify any damage, imperfections or missing components, report them immediately to sales@jdmuscleusa.com. Do not install the item. Please note that reports of damage, defects, imperfections or missing components after installation will NOT be honored.

Package Protection

We do our best to ensure your items arrive to you safely but sometimes things happen. If you utilized our Checkout+ feature, rest assured that your package is protected! With package protection, in the event that your package is lost, stolen, or damaged while in transit, we will replace it free of charge. To start a shipping claim, please click here.

Need Assistance?

If you have any concerns about shipping costs or transit times, or if you notice discrepancies during checkout, feel free to reach out to us at sales@jdmuscleusa.com. We’re happy to assist you and ensure a smooth delivery experience.

Limited Manufacturer Warranty*

Our policy lasts 30 days. If 30 days have passed since your purchase, unfortunately, we can’t offer you a refund or exchange. To initiate a return, please email us at sales@jdmuscleusa.com.

Eligibility for Returns

✅ Items must be unused and in the same condition as when received.
✅ Items must be in their original packaging.

Non-Returnable Items

❌ Gift cards
❌ Special-order or custom products

How to Initiate a Return

📧 Include the following details in your return request email:

Order Number

Item(s) to be returned

Reason for return

Important Notes:

Do NOT send your purchase back to the manufacturer.

Do NOT return any items without first setting up a return request with us.

Partial Refunds

Partial refunds may be granted under the following conditions:

⚠️ Items not in original condition, damaged, or missing parts not due to our error.
⚠️ Items returned more than 30 days after delivery.

Restocking Fees

Some manufacturers may charge a restocking fee, which includes but not limited to:

ManufacturerRestocking Fee

ESR30%

JDMuscle15%

PLM & Option Lab 20%

 

Cancellations

Before placing an order, please confirm availability.

Cancellations within 7 days may be subject to fees to cover third-party transaction costs.

Once the order has been processed (packaged or tracking generated), cancellations are not allowed. Eligible items may be returned instead.

Special-order items cannot be canceled.

Refund Process

🔄 Once your return is received and inspected, we will notify you of the refund status.
💳 Approved refunds will be credited back to your original payment method within 3-10 business days (depending on the payment provider).

Late or Missing Refunds

🔍 Check your bank statement — sometimes the refund may not appear as a new entry but as the disappearance of the pending charge. 📞 Contact your credit card or financing company — they may require additional time for processing.

If you’ve done all of the above and still haven’t received your refund, email us at sales@jdmuscleusa.com for assistance.

Sale Items

Only full-priced items are eligible for returns and refunds.

Exchanges

We replace items only if they are defective or damaged. To request an exchange for the same item, email us at sales@jdmuscleusa.com.

Gifts

🎁 If the item was marked as a gift when purchased and shipped directly to you, you will receive a gift credit for the return value.
📩 If the gift giver had the item shipped to themselves, we will refund the gift giver.

Return Shipping

📦 Customers are responsible for return shipping costs unless the item is damaged, defective, or incorrect (in which case we will cover shipping both ways).

Initial shipping costs are non-refundable.

Return shipping costs will be deducted from the refund amount.

For items over $75, consider using a trackable shipping service or purchasing shipping insurance. We are not responsible for lost or damaged items during return shipping.

Return Shipping Address: Please use the address provided in the RMA/return instructions, as it may differ from the initial shipping address.

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov