Porsche 987 Gen.1 Boxster Cayman NHP Exhaust Headers 200 Cells Long Tube Version
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FITMENT: Porsche 987.1 Boxster (05-08) and Cayman (06-08) All Models
WARRANTY: Lifetime limited warranty (Please read more about our warranty here)
RETURN POLICY: Please see our return policy here
WHAT'S INCLUDED: L + R Headers
Usage: For daily driver and occasional track use (Beginners).
For medium track use or heavy track use only we don't recommend any exhaust headers with catalytic converters we only recommend Racing Exhaust Headers with no catalytic converters. The warranty is void for our exhaust headers with cats used mostly or only for racing purposes.
NHP Exhaust Porsche 987 Gen.1 Long Tube Headers with 200 cells catalytic converters. Made of T304 Stainless Steel with mandrel bend piping featuring a cast flange, and incorporates a 200 C.P.S.I Metallic Catalytic Converter. These long tube headers are bulit with the idea to produce most power gains in the mid to upper level RPM's making them ideal for the track and for those who like to keep the RPM's rolling high however if your 987 is a daily driver with mostly city driving and normal highway commute our short tube version may be a better choice for you. These are plug n play and will accept your factory 02 sensors, gaskets a hardware is included for installation.
The 200 Cells Catalytic Converters are the race version which are smaller in surface area than the factory version and are less restrictive compared to stock version, adding the catalytic cartridge will retain some of the backpressure to reduce low end power loss and still benefit from the long tube primary piping. However the catalytic surface area is not large enough to prevent the Check Engine Light from lighting up, if your ECU has been flashed the check engine light doesn't apply to you but with factory ecu sofware you will get a C.E.L, our optional 02 bungs may help prevent a C.E.L.
For the State of California our Exhaust Products are not C.A.R.B.
Our Exhaust products have no guarantees about passing emissions in your state.
Our High Performance Exhaust with sports catalytic converters are built and meant for off-road purposes.
Our Exhaust Products “Lifetime Warranty” does not cover catalytic converter error codes.
Please note that when installing High Performance Catalytic Converters there is a possibility that you may get a “Check Engine Light” for Catalytic Converter Inefficiency or other Catalytic Converter related error codes. This may or may not happen, this is due to lowering the Cell Count of the catalytic cartridge, in other words we need to work with the same surface area with a lower cell count, most OEM Catalytic Converters will have 600 to 800 Cells per square inch, High Performance Catalytic Converters are only 200 Cells per square inch. If you get a check engine light it’s not because the product is defective but it’s the ECU picking up the difference and relating those error messages.
There are several ways to deal with this.
Most Efficient is the Flash the ECU with performance software, make sure to tell your tuner that you have 200 Cell Cats. This is the most expensive and most efficient.
Use 02 Bungs, many have been successful by using 02 Bungs however this is not 100% Bullet Proof.
Purchase OBD2 Scanner, read your codes and erase them. For those of you who are not annoyed by the use of a scanner on a weekly basis this is the cheapest solution.