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RoadsterSport Header for 99-00 Miata


MSRP: $419.00
Price: $399.00
You Save: $20.00 (5 %)
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Item Number: GWR-RSH-9900
Manufacturer: Good-Win-Racing
Manufacturer Part No: 61-2802

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Goodwin Racing's take on the classic 4 to 1 Miata header! The most bang for your buck, with all the features you need in an all stainless steel header.

Manufactured entirely from 304-stainless steel with thick flanges that will not warp like other stamped or cast flanges. Large 1.7" primaries collecting to a 2.375" OD tube via a smooth 4:1 merge. O2 sensor bung included after the merge.

RoadsterSport Miata Header 99-00




Manual transmission only. EGR compatible.

Gasket included. Comes with a plug loosely installed in the oxygen sensor bung.

Note that adding any header results in an increase in the exhaust sound level on your Miata.

Note there is an INTENTIONAL small dent in one of the primary tubes for clearance to the steering rod.

Roadster Sport Header 99-00

CARB NOTICE: 

Not CARB approved (and therefore legal in California for off road use only). Note that there are states in addition to California that now follow the California model and require CARB compliance, please check the rules of your state before ordering, in some states this setup is legal only for race cars and may never be used on public highway. 

This header is a direct replacement for the factory 1999-2000 header on all Federal Miatas that do not have a catalyitic converter in the factory header. For Miatas that were originally sold in California which DO have a catalytic converter in the header, this header will fit those cars but you will need to relocate the oxygen sensors downstream to the catalytic converter located in the midpipe, and you will need a "Race Header O2 Wiring Kit" to accomplish that.

Goodwin Racing's Application Notes: Year after year our top choice was the Racing Beat and year after year they ran out of stock because the batches of CAST flanges would be too warped to use and then they would be out of stock for months trying to get a good batch. We got tired of that, customers were tired of that, so Goodwin Racing did their own that avoids the use of the problematic cast flanges and otherwise is similar for pipe size and length and all stainless construction. We think it is the best header you can get for the money and as a result Goodwin Racing's warranty is lifetime, which you will not get on ANY other choice!

* Legal in California only for racing vehicles, which may never be used upon a highway.

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