Ive seen the 2 years referenced many times but couldnt find an explanation about the differences between the 04 & 04.5 and/or how you you can tell if a car is an 04.5. Is there something in the VIN?

Thanks

 

There are small differences that hint at the '05 model.
The shift **** on the 5AT is small like the '05. And there's some mechanical changes that hint toward the '05 as well, anyone care to contribute?

 

Good question! Yes indeed there is a big difference between the 2004 and 2004.5. The 2004.5 was changed over to a "low emissions vehicle." It still features the same basic performance however it features a more complex, larger, ECM as well a few additional sensors. Hope that helps!

 

This is all good info, but how would I tell if I have the 2004.5 model? Is it listed that way on the title? Im really guessing theres something in the car VIN that would tell me.

 

Look on the inside of your drivers side door, should have the weight and the date it was made

 

80000 and below = 2004
80001 and above = 2004.5

you can verify this on infinitihelp

 

My car was finnished 7/12/04....Funny thing is I bought it in August....didn't know it could get to market so quick....does this make it a 2004.5????.....didn't know there was any difference

 

silver II, what do you mean by 80000 below = 2004 and 80001 = 2004.5?

 

my car is # 816765 i guess its a 2004.5 baught it in 7-18-04 so i guess if you got your around may or so, you still got a 2004 and any cars in june would be a 2004.5

 

ah ok. I picked up mine around 3/04 but I believe it was manufactured in 9/03. Ill check on that manufacturing number but Im guessing its not a 2004.5

 

anyone put an 05 auto shifter on an 04 auto?

 

Can anybody be more specific about the differences?

 

I think you left out a zero in each of the above numbers...

IF the VIN ends in 800,000 or higher then you are supposed to have a 2004.5 ECU. These cars have more hp and torque on the dynos than the 2004's. Although Nissan never published this data it was done to test out the up and coming changes for the 2005 vehicles without the exhaust changes.

Some people are so gullible.

 

neffster, how come the 2005.5 has more HP and torque than the 2004? is it just because of the ECU. so, how much HP and torque does the 2004.5 has? are you saying that it's more than 280 hp and 270 lb/torque?

 

If that is true, YESSSSSSSSSSSSSSSSS!!!!

Neffster, where did you learn this?

My VIN is 82XXXX, July '04 build, and Brembo equipped (CB too)