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4-1 STAINLESS RACING MANIFOLD HEADER/EXHAUST JDM 99-00 HONDA CIVIC Si EM1 B16A2
ITEM SKU: HDS-HC99SI-41

High Performance Stainless Steel Header Exhaust

Getting more air into your engine and more exhaust out is the key to a performance motor. That's where exhaust headers is significant as the first revenue of an exhaust system. Exhaust performance headers manipulate the air flow with the performance-robbing exhaust manifold that came with your car. Headers provide each cylinder with its own mini exhaust pipe, which means exhaust headers prevent interference among cylinders; thus, the backpressure that occurs in common exhaust manifolds. When cylinders don't have to fight with each other to expel their exhaust, they can put more power through the wheels, pushing the vehicle. Combining with a high performance cold air intake, and a cat-back exhaust system, a header system removes all restrictions of your engine, then, it is able to perform at its full potential


Specifics and Benefits:

  • Made of High Quality Stainless Steel Material with Computerized Mandrel-Bends for Strength and Durability
  • i.e. Maximizing Smoothest High Exhaust Air Flow Rate
  • 4-1 High Performance JDM Racing Spec. Design
  • TIG Welded CNC Machine Flange
  • Inlet/ Outlet: 1.75" X 1.25" (4 x Oval Manifold Ports)/ 2.375"
  • Major Piping Diameters (Outer): 4 X 1.675" into 2.500"
  • Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.
  • 100% Brand New
  • Professional Installation is Highly Recommended (No Instruction Included)


  • Package Includes:

  • 1 X Header Exhaust System
  • Hardware as Shown in the Picture Above

  • Application:

  • 99-00 Honda Civic Si EM1
  • 93-97 Honda Del Sol VTEC EG2
       (Minor Modification, such as Crossmember Clearance, migth be Required for Del Sol Models)

      (Fits Models with 1.6L DOHC B16A2/ B16A3 l4 Engines ONLY)

    Please Check Compatibilities for the Exact Years and Models


  • * Professional Installation Highly Recommended! No instructions included! *
    DOMESTIC LOWER 48 US STATES: $0.00
    AK / HI / PR / PO BOX: $79.98
    CANADA: $79.98
    REST OF THE WORLD: $189.98
    SALES TAX: CA ONLY
    Shipping Information:

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    • Please use Shipping & Payments tab on top of page for shipping details for your location.

    • Shipping to PR, HI, AK and PO Box addresses will be charged the same as shipping to Canada. GU, VI, SAIPAN will be charged the same as international shipping rate.

    • For Canada shipping please select the lowest price. We do not offer expedited shipping.

    • US Territories such as GU, VI, SAIPAN will be charged the same as international shipping rate. Transaction will be held until a full shipping amount received.

    • Some of the packages cannot be delivered to a PO Box. Customer is responsible to ensure PO Box address given is deliverable by the shipping company. Package will be held until a valid physical address is provided.

    • Customer assumes shipping charges incurred in shipping to undeliverable address.

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    • We ship 98% of all orders the same or next business day after payment received/cleared. Please understand that once orders are shipped, we cannot control the transit times thereafter. Most orders will ship via USPS First Class/Priority Mail or FedEx/UPS or the best suitable carrier for the specific size of the product.

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    Return policy:

    • 14 Days money back, please notify us within 14 days after you've received your purchased item.

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    • You have to obtain a RMA (Return Merchandise Authorization) number from us, and have the RMA number written on the return package.

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    • All returns are for refund ONLY. No exchange accepted.

    • Returns for refund are subject to a 20% restocking fee.

    Terms & Conditions:

    • For emissions related items, please check with your local jurisdiction for emission specific requirements before purchasing.

    • All items do not come with installation instruction unless otherwise specified.

    • If item is questionable, please consult your local professional/mechanic before making purchase.

    Contact:

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