Multiple listings for the same brand and type of part merely indicate different suppliers. Unless otherwise noted, they are the same part.

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S99611302407

D.e.c. 48 State for Porsche Boxster

$570.20
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R99611302407

D.e.c. 49 State Catalytic Converter for Porsche Boxster

$564.50
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G99611302407

This part has changed to 996113024BX.
Please click here to view the new part

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R210111086

This set of pipes allows you to remove the secondary cars on your 2.5l Boxster for a more free flowing exhaust. to make installation easier, order installation kit rfvdmk986300. Note: reprogramming of dme necessary for proper running engine. Removing catalytic converters or tampering with emissions devices are for off-road use only and may void your warranty.

This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.

Fitment: BOXSTER 2.5L 1997-99

$808.50
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R210111086S

This set of pipes allows you to remove the secondary cars on your 2.7l/3.2l Boxsters for a more free flowing exhaust. Note: reprogramming of dme necessary for proper running engine. removing catalytic converters or tampering with emissions devices are for off-road use only and may void your warranty.

This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.

Fitment: BOXSTER/S 2000-04

$620.40
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R21011119S

For those Boxster owners out there that want more performance without the hassle of dme reprogramming, we offer sport cats to replace the factory secondary catalytic converters. These sport cats will keep the dme happy and retain the factory appearance of your Boxster. Each sport cat contains a 100-cell converter for increased exhaust flow.

This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.

Fitment: BOXSTER/S 2000-04

$1,696.20
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R905897784

* race proven performance
* authoritative sound
* polished stainless steel 4301/304

Most stock catalytic converters have upwards of 400 cells per square inch in the metal substrate honeycomb matrix used to remove pollutants. This tight cell density can restrict exhaust efficiency. Dansk hi-flow racing converters use only 100 cells per square inch, decreasing back pressure and increasing horsepower. Gaskets and hardware sold separate.

Fitment: 1999 - 2004 BOXSTER

$2,250.59
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SFSPOR9861SC

Features:


Fits all 986 Boxster vehicles 1997-1999

"Fabspeed Cats Only Fits Stock Mufflers Only"


$1,826.75
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RFSPOR9861SC

Product details:

Replaces the restrictive factory cats with high-performance hjs racing sport cats for maximum performance and sound

Features:

-fits all Porsche 986 Boxster / s vehicles from (1997-1999)
-improves power and throttle response
-saves weight from the vehicle versus factory restrictive cats
-constructed with fabspeed-proprietary 200-cell hjs high-flowing catalytic converters using t304l stainless steel
-direct replacement for stock cats
-simple bolt-on installation
-all fabspeed performance products are backed by the fabspeed lifetime limited warranty

Note: fabspeed’s 200-cell high-flow catalytic converters are not c.a.r.b. Certified and are for off-road use only in the state of california

"Fabspeed Boxster Sport Catalytic Converters"


Fitment: 986 BOXSTER VEHICLES 1997-1999

$1,395.00
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SFSPOR9862SCB

Features:


Fits: all 986 Boxster/s vehicles 2000-2004

$779.15
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RFSPOR9862SCB

Product details:

Replaces the heavy, restrictive, and redundant factory secondary catalytic converters with a straight-through tubing section for increased power, sound, and weight savings

Features:

-fits all 986 Boxster / s vehicles (2000-2004)
-increases horsepower by 8 whp improving throttle response
-saves 25 lbs from the vehicle versus factory OEM restrictive catalytic converters
-constructed from high quality t304l stainless steel with cnc mandrel-bent tubing
-improves horsepower, torque, throttle response and exhaust note
-easy bolt-on installation; no cutting or welding required
-all fabspeed performance products are backed by the fabspeed lifetime limited warranty

Fitment: BOXSTER/S VEHICLES 2000-2004

$595.00
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RFVD111LAMVER

Having problems with your check engine light? Want to run cat bypass pipes or a free flowing sports catalyst set up on your vehicle without having to reprogram the dme (ecu)? This adapter offsets the oxygen sensor about 1.5 inch from the gas stream. This achieves, in most cases, a sufficient measurement for the air/co ratio and increases the tolerance range between the pre and post cat oxygen sensors. In addition, the sensitivity of the oxygen sensor is also reduced allowing you to run a nearly any exhaust or catalytic set up, including bypass pipes, without the need to reprogram your ecu! Use only for the 2nd oxygen sensor (after catalytic)!

This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.

Fitment: ALL WITH 2 OXYGEN SENSORS

$42.90
QTY: