Discontinued

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ISR Performance Hi Rise 4-2-1 Header - Mazda Miata NB 99-05 1.8

 The ISR Hi Rise Runner 4-2-1 Stainless Steel Header brings an aggressive style and sound to your Miata. This full length stainless steel header is a bolt on application to stock exhaust or pair with the ISR circuit spec exhaust cat back for the ultimate Miata exhaust system on the market.

** Due to the long runner design it is required to run an aftermarket intake that relocates the AFM and air filter away from the header and will not work with factory air box. Also, there are no provisions to incorporate your OEM EGR. **

Whats in the Box:

  • 1x exhaust manifold gasket
  • 1x 2 bolt 3" gasket 
  • 1x Hardware pack
  • 1x 4-2-1 tubular Header

** All ISR Performance Products are Designed for Off Road Use Only **


Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.

1 Review

  • rating star filled rating star filled rating star filled rating star filled rating star empty 4
    Great for looks bad for heat management

    Posted by Lauro rodriguez on 5th Jun 2021

    These are very cool looking headers, heat turns them into a bronze look which is nice, but the heat that irradiates from these is ungodly, if you’re adding this you need to have a vented hood, or turn signal vents.

Description

ISR Performance Hi Rise 4-2-1 Header - Mazda Miata NB 99-05 1.8

 The ISR Hi Rise Runner 4-2-1 Stainless Steel Header brings an aggressive style and sound to your Miata. This full length stainless steel header is a bolt on application to stock exhaust or pair with the ISR circuit spec exhaust cat back for the ultimate Miata exhaust system on the market.

** Due to the long runner design it is required to run an aftermarket intake that relocates the AFM and air filter away from the header and will not work with factory air box. Also, there are no provisions to incorporate your OEM EGR. **

Whats in the Box:

  • 1x exhaust manifold gasket
  • 1x 2 bolt 3" gasket 
  • 1x Hardware pack
  • 1x 4-2-1 tubular Header

** All ISR Performance Products are Designed for Off Road Use Only **


Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.

Reviews