The Nissan Path

A good, custom exhaust shop could take your existing post cats and turn them into something similar for a lot cheaper, I would think. Cut the cat off, weld on a new section of pipe and a flange...it shouldn't be that hard. If you live in a state that has strict emissions inspections, they will fail ...

You usually don't see the part that breaks because it breaks inside the hose. The plastic just gets really britten and breaks. The all-metal update looks like a good solution!

They are straight pipe replacements for the secondary converters made by Doug Thorley:

http://www.dougthorleyheaders.com/83206 ... ipes_15714

As I just mentioned, they are NOT monitored by the ECM, so, "no," they will not trigger the check engine light if you hollow them out. I replaced mine with DT mid-pipes and no issues.

They are rear catalytic converters, but they are not monitored for efficiency like the upstream converters.

The blue coolant has a longer service life than the green, but is otherwise compatible. The Nissan green coolant is rated for 90,000 mile initial service, followed by 60,000 mile subsequent service intervals. Nissan blue coolant or equivalent has a manufacturer-rated, 105,000 mile interval, but is a...

The mode doors are all operated by electric actuators, so I would think that the noise would be either a bad actuator OR an issue with the mode door, itself (such as foam falling off of it and causing it to bind, etc.). It might be hard to diagnose without getting a good look from under the dash or ...

When you start your engine cold, the ECM is in open loop. It will not enter closed loop until the coolant temperature reaches the proper temperature. Also, at this time, heaters in the oxygen sensors are used to help warm up the sensors quicker. Once the vehicle enters closed loop, the ECM will use ...

The only time one needs to use catalytic converters from the manufacturer is if the vehicle is in a state that follows California emissions standards (i.e. CA, NY, MA) AND there is not an aftermarket version available that is C.A.R.B. certified. I would, however, recommend going with an established ...

I tried it on my end and I guess not, unfortunately.

When you replace the air/fuel sensors on these vehicles, you are supposed to erase the ECU self-learning or that code can be triggered. I would try erasing the self-learning memory and then perform and idle air volume re-learn before replacing any parts. if you suspect a bad injector(s)...which are ...

Sounds like it's working properly. I usually hear mine at first start-up or when sitting in a drive-thru line for a long time.

Lean mixture leads to pre-ignition detonation. As mentioned already, it'll damage the pistons and can potentially melt the ends of the spark plugs.

No drilling was required to install the mud flaps. IIRC, there was a plastic piece that was held on with screws that gets discarded when one installs the factory mud flaps and the screws are re-used or new ones were provided with the flaps (I forget which).

Yeah, that's not used on the V6 R51's (I have a 2006 & 2008, both V6's). Makes sense that it would be part of a heater pipe assembly, which is the way Nissan offers the heater pump.

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