Giselwerks Intake Manifold for Mazda MX-5 NC


Giselwerks Intake Manifold for Mazda MX-5 NC

Designed and manufactured in Germany, this intake manifold is the secret sauce for people wanting to play in the big leagues. The Giselwerks manifold raises the power limits of the MX-5. The unique design allows huge power numbers to be reached, and is strongly recommended for builds of 400hp and above.

During testing, the manifold has proven to reduce the amount of boost required to make the same power. This reduces the amount of stress on other components, whilst providing more headroom for more power in the future. The plenum tapers down to allow equal airflow to all cylinders, ensuring consistent and predictable airflow throughout the rev range.

Due to the small batch size and handmade manufacturing process, Giselwerks are able to offer bespoke features added to their intake manifolds. Please contact us for any queries about customization on +44 (0) 203 795 0515  or email us at [email protected].


  • Designed and handmade in Germany
  • Capable of 400hp+ on turbo applications
  • Standard throttle body fitment
  • Taped down plenum

Additional information

Shipping Weight 4.9 kg
Shipping Dimensions 27 × 41 × 50 cm



1.8/2.0, 2.5


Natural Aluminium, Silver Power Coat, Gloss Black, Matt Black, Crinkle Black


Mk3 (05-15)

Warranty information

Warranties cover defects in materials and workmanship only. Warranty is for replacement of a similar product, repair of the original product or refund of the purchase value only and excludes all labour and incurred charges including towing, fitting, inconvenience, and purchases of other manufacturer's products. The warranty is good for the period stated in the additional info tab from the date of purchase. Mileage warranties are for road use only and proof of mileage is required. Products must be installed by an independent experienced professional mechanic and the suspected defect must be present at the outset. The warranty does not cover damage caused by incorrect installation, failure to comply with the maintenance requirements of the vehicle, processing or otherwise changing the product, ordinary wear and tear, or any other external influences. Warranties are invalid if the product is used for racing, rallying, drifting, track days or any other form of motorsport or competition. Please refer to the manufacturer's own warranty documentation for more information.

Making a warranty claim

Proof of purchase receipt showing the date of purchase, proof of mileage at installation, proof of current mileage and invoice of the work undertaken by an independent experienced professional mechanic must be supplied along with the returned products for a warranty claim to be considered. If your vehicle needs to be used whilst your warranty claim is considered replacement parts from the same manufacturer should be purchased through BOFI Racing. In the event of a successful warranty claim, we will refund the card that was originally used to purchase the replacement parts, in full or in part depending on the nature of the claim. BOFI Racing reserves the right to make full or partial compensation at its sole discretion depending on the condition and mileage use of the returned suspect parts. For example, if you have used the part for several thousand miles before a defect is noticed, only partial compensation may be offered.

Make Model Year
Mazda MX-5 III (NC) 2005 - 2015

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