Piper 4-2-1 Stainless Steel Exhaust Manifold Kit for Mazda MX-5 NA 1.8

£585.95£585.99 inc. VAT

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Piper 4-2-1 Stainless Steel Exhaust Manifold Kit for Mazda MX-5 NA 1.8

Elevate the performance of your MX-5 with this meticulously crafted stainless steel manifold from Piper. Engineered with precision and attention to detail, it offers a measurable increase in performance along with excellent build quality. Constructed from high-quality T304 stainless steel, this manifold kit ensures optimal exhaust flow. The 4-2-1 design enhances torque and response, delivering a smoother and more dynamic driving experience.

This 4:2:1 manifold has a laser-cut stainless steel flange measuring 8mm. The primary tube size is 1.625”/41.27mm, while the secondary tube size is 1.875”/47.63mm. The manifold exit dimensions are 2.25”/57.15mm. As this manifold has been designed for compatibility with Piper’s exhaust systems we cannot guarantee compatibility with other aftermarket exhausts. We have not been able to confirm which de-cat pipe this manifold fits, or whether it bypasses it all together to meet the cat-back.

The standard link pipe is designed to work with Piper’s factory-style cat-back system, although it might fit other manufacturers’ systems. The Slam Series link pipe only works with Piper’s Slam Series exhausts which are specifically designed to fit extremely lowered cars.


  • Made in the UK
  • Quality T304 stainless steel
  • Primary tubes 1.625”/41.27mm
  • Secondary tubes 1.875”/47.63mm
  • Manifold exit 2.25”/57.15mm

Additional information






Mk1 (89-98)

Weight 3 kg
Dimensions 140 × 25 × 10 cm



Standard, Slam Series


Mk1 (89-98)

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 I (NA)

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