Product Information:


Circuit Spec R proudly carries performance upgrades by one of the biggest names in the industry, HKS. Since 1973, HKS has been a leading innovator in turbocharger technology, and many of their products have been utilized on world-class race cars of all makes and genres. Today, HKS continues to engineer high-performance engine components to improve the power and the performance of your vehicle. 

This is the HKS Hi-Power Exhaust System. This exhaust system features a larger piping diameter, smooth bends, and durable stainless steel construction to provide your vehicle with a lifetime worth of performance. The design removes any restrictions to the exhaust flow that is associated with the OEM design, allowing your engine to exhale much easier for improved horsepower and torque, all while creating an aggressive exhaust note. 

Specs:

  • 304 stainless steel construction
  • 2.50" piping diameter
  • Dual Hi-Power mufflers with 4.75" burnt exhaust tips
  • Smooth bends
  • Improves the exhaust flow
  • Creates more power, performance, and improves the low-end torque
  • Produces an aggressive exhaust note
  • Exhaust hangers welded onto the OEM location to make for a direct exhaust replacement
  • Will include new hardware and O-ring gaskets

    • Shipping:


    Nissan: Z34 370z (2009-2021)

    Shipping:

    I may either ship through USPS or UPS at my own discretion.

    Products are usually shipped out Monday – Saturday. Please contact me through email for assistance regarding other shipping methods.

    Return policy:

    When receiving your package, please open all of the boxes immediately to  check if all the contents are inside and not damaged. All damaged or defective items must be reported within 2 business days from the day the packaged is delivered. If the package appears to be damaged on the outside, please refuse to accept it from the carrier; or please make sure when signing the shipper's proof-of-delivery slip, you include a note stating that the package is or appears damaged. If you do accept a damaged shipment, please inform us immediately. Depending on the product and where/how it was shipped, it may be necessary for you to deal with the carrier. 

    If the product received is defective, a replacement will be sent as soon as possible. If you decide to return the defective item, rather than replace it, a restocking fee will be assessed (15-20% depending on the item) and your original shipping and processing charges will not be refunded. Also, returned products must be in its original packaging which allows me to re-sell the product. I will refuse any damaged or products that are not in good condition. 

    If after 30 days of receiving your product, it proves to be defective, we would like for you to deal with the manufacturer. They will inform you on how to proceed based on their policies. 

    If you are unhappy in any way, please contact me through eBay messages. I will provide you instructions on how and where to return the product.SR

    Terms and policy:

    • All of my products are 100% brand new unless otherwise stated in the description above.
    • All sales are final unless item is defective upon delivery. If for any reason the product has to be returned, a 15-20% restocking fee will be implemented.
    • As mentioned above, please inspect your order upon receipt.  No claims will be honored after 2 business days of delivery.
    • We will reimburse you the actual shipping fees for exchange if we shipped incorrect quantity, item, or defective item.
    • All items (except those exempted) are intended for off road use only, may never be used on public roads and highways