Fast Intentions exhaust is here!

TerribleONE · 04-05-2012, 12:49 PM

Quote:

Originally Posted by The Dimer

So you're saying that filters and Post-MAF tubes are enough to lean out the air fuel ratio with full exhaust mods? I thought is was aftermarket intakes that did this because they have larger MAF sections/different MAF locations, or will anything that frees up the intake a little be an issue?

Just wondering if I can just save up for long tubes or if I need to add the cost of a tune on there too.

this is strictly my opinion. There are plenty of guys running all those mods with no tune however I imagine their AFRs are pretty terrible. If it were my car, no matter what intake (besides drop ins) and a full exhaust, I would tune it.. Its better to be safe than sorry

PaulZ370 · 04-05-2012, 01:26 PM

Quote:

Originally Posted by TerribleONE

this is strictly my opinion. There are plenty of guys running all those mods with no tune however I imagine their AFRs are pretty terrible. If it were my car, no matter what intake (besides drop ins) and a full exhaust, I would tune it.. Its better to be safe than sorry

I just contacted Nissan regarding this, having just upgraded my HFC/CBE and have a K&N Typhoon Intake. I told the Service Manager whom I trust that I just upgraded my exhaust, but its nothing more than what a NISMO would ordinarily be. He stated emphatically that there is no need for a Tune. Again the pharse is " NO NEED " for a tune. You won't burn a valve or damage your engine simply because of a simple Intake and exhaust upgrade. Unless you go Turbo, Supercharger, Nitrous or anything beyond of what a VQ37VHR is asked to do by the factory, the car should be fine. If you track the car and push it to it's limits, then it's a whole different ball game, and you may want to tune because you are looking at optimal power, not just a fun ride.... You can still tune it if you want regardless, but herein lies the risk. You tune it, something happens, Nissan can claim you tampered with the programming on the computer and hence your warranty is void.

Now it's up to each individual to make up his/her mind what they want to do. Upgrade hell? Here it is... Decision making time...

The Dimer · 04-05-2012, 01:37 PM

Quote:

Originally Posted by PaulZ370

I just contacted Nissan regarding this, having just upgraded my HFC/CBE and have a K&N Typhoon Intake. I told the Service Manager whom I trust that I just upgraded my exhaust, but its nothing more than what a NISMO would ordinarily be. He stated emphatically that there is no need for a Tune. Again the pharse is " NO NEED " for a tune. You won't burn a valve or damage your engine simply because of a simple Intake and exhaust upgrade. Unless you go Turbo, Supercharger, Nitrous or anything beyond of what a VQ37VHR is asked to do by the factory, the car should be fine. If you track the car and push it to it's limits, then it's a whole different ball game, and you may want to tune because you are looking at optimal power, not just a fun ride.... You can still tune it if you want regardless, but herein lies the risk. You tune it, something happens, Nissan can claim you tampered with the programming on the computer and hence your warranty is void.

Now it's up to each individual to make up his/her mind what they want to do. Upgrade hell? Here it is... Decision making time...

The worst part about having a warranty is the thread of losing it.

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