FAQ

WHATS THE DIFFERENCE  IN ALUMINIZED STEEL AND STAINLESS STEEL?

• ​The main difference between the two is pricing and the outer shell of the metal.

• Stainless Steel cost more than Aluminized Steel.

• Stainless steel b-pipes look better and lasts longer than aluminized steel.

• 409 stainless will surface rust but not rust through like aluminized steel.  

• The aluminized steel has only a protective coating that, if scratched off, may rust.

• Aluminized steel will last several years and probably as long as the truck will in non corrosive environments.

• Stainless will be the choice of b-pipes for northern and salty environments.

• My aluminized steel pipes are crush bent and the stainless steel pipes are mandrel bent.

WHAT'S THE DIFFERENCE BETWEEN CRUSH BENT AND MANDREL BENT?

• Crush bent pipes are slightly narrowed at the bends as the metal conforms to the die on the bender.

• Mandrel bent pipes keep the same internal diameter through out the bend.

• Cajun offer both type bends with its aluminized steel pipes having been crush bent and stainless pipes are mandrel bent.

• Both pipes perform great and the bends are only 20* and 10* on each pipe.

• Therefore the actual crush bend is not that great of a reduction in the ID of the aluminized pipes.

WHAT CONVERTERS DOES CAJUN B-PIPES USE?

• Cajun B-Pipes uses Canamex OBD2 spun converters made in the USA.

• These are very high quality cats from a reputable company and fit nicely with the Titan/Armada.

WILL CAJUNS CAUSE A CHECK ENGINE LIGHT?

WILL CAJUN B-PIPES WORK WITH SHORTY STYLE HEADERS?

HOW HARD ARE B-PIPES TO INSTALL?

• B-Pipes can be installed in less than a hour with simple tools like a 14mm wrench/socket, small screwdriver, and an O2 sensor tool or large crescent wrench.

• I recommend removing the O2 sensors after the B-Pipes have been removed from the truck and placed in a vise.

• Be very careful with the sensors as they are damaged very easily.

WHAT GASKETS SHOULD BE USED WITH MY B-PIPES?

• I recommend OEM Nissan #20692-65J00 stacked metal gaskets on the front and rear flanges of the B-Pipes.

• These gaskets are reusable and provide the best seal available.

WILL I GET DRONE OR CIS (CARD IN SPOKE) SOUND?

• Unfortunately the VK56 used in the Titan/Armada is very sensitive to exhaust changes.

• The firing order of the engine is believed to cause these unwanted tones in the exhaust.

• Test pipes B-Pipes with headers will likely have drone and CIS, just nature of the beast.

• There are "proven" mufflers and exhaust systems out there that will decrease or eliminate these unwanted sounds.

• Muffler selection has a lot to do with it:  Borla, JBA, and Gibson exhaust systems are proven mufflers on the Titan/Armada.

• The Ultraquiet Resonator by Vibrant Exhaust is a proven devise to help eliminate drone and CIS.

IS IT NECESSARY TO GET TUNED POST CAJUN B-PIPE INSTALL?

• ​Cajun B-Pipes alone WILL NOT require a tune although if you install aftermarket headers on your Titan or Armada  keep in mind a custom tune may be required or engine damage could occur.

• Flex fuel Titans may get by without a custom tune but still need the AFR's checked to be safe, non flex fuel Titans will likely need a custom tune to prevent engine damage.

RETURNS AND WARRANTY OF CAJUN B-PIPES?

COMMON COMPONENT ISSUES THAT CAN CAUSE CONVERTER FAILURE. (UNTUNED POST-HEADER INSTALL).

• Intake leak

• Exhaust leak

• Fuel Injector leakage

• Defective front O2 sensor

• Defective Mass Air Flow Meter (MAF)

• Defective Coolant Temperature Sensor (ECT)

• Defective Manifold Absolute Pressure Sensor (MAP)

FOLLOWING ARE THE MORE COMMON CONTAMINANTS THAT WILL AFFECT O2 AND CONVERTER PERFORMANCE:

• Oil – bad rings or valve seals

• Sulfur – found in some low quality gasoline

• Silicone – found in most gasket sealants unless marked “O2 sensor safe”

• Coolant – damaged head gaskets or Intake plenums