NHP Porsche Boxster 986 Sport Headers with 200 Cell Catalytics


2000 – 2004 Porsche Boxster / Boxster S

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Part Number: NHP-986-SHD

Brand: NHP Exhaust

Fitment: 2000- 2004 Porsche Boxster / Boxster S (will not fit 97-99 2.5L models)

Warranty: Manufacturer offers lifetime against defects Designed to replace the highly restrictive factory headers, these headers will fit without any modifications, the headers include all gaskets and hardware needed to install them.

With the mandrel bend primary piping increased to 42mm it allows for more exhaust flow before entering the Tri-Metal 200 cells Sport Catalytic Converters coated with rodhium/palladium/platinum , our Catalytic cartridge have 200 cells per square inch instead of 600 cells per square inch, with the larger primary piping and less restrictive catalytic these headers achieve a much better exhaust flow. +8 HP Gains Equal length primary piping, mandrel bend Racing merge collector for primary piping 42mm primary piping vs 36mm stock piping 200 cells sport catalytic converters 2 inch exit pipe vs 1-3/4″ stock exit pipe 10mm thick flanges T-304 Polished Stainless Steel (except for flanges that are steel)

Important information about NHP 200 Cell Exhaust Headers. Because these are 200 cells instead of the 600 cells (Factory) there is limited space as far as the size of the catalytic cartridge NHP can build these headers with, and NHP has seen some customers experience a “check engine light” the error codes are cat-related . After many years of selling these headers, many customers have not experienced “check engine light” issues and some did. NHP cannot pin point a specific year and model that this happens most often. The NHP lifetime warranty does not cover check engine light issue for the NHP 986 200 Cell Headers however it does cover everything else. If your car has been flashed with performance software this issue will not apply to you.

Additional information

Weight22 lbs
Dimensions20 × 20 × 10 in
PorscheBoxster S2000 - 2004