I was wondering if there was a difference between the two? They both have the brembo brake upgrades and I know the 05 has 300hp but does the 03 have it?

 

The 03 has 287hp/274tq.

 

You lose torque in the new Track but gain a few HP as well as a higher redline. 03,04 Track have more torque and a little less hp. I like more torque, just my opinion. Its such a miniscule amount though, I doubt you would be able to tell the difference driving it day to day. BEN

 

the 04 and 05 have an upgraded master brake cylinder, seatbelt extenders, leg pads, newer suspension, different ECU, sunvisor extenders, possibly wideband O2 sensors depending on what 03 model you're talking about (some 03's had narrowband sensors)

 

Off the top of my head:

- Continously Varible Timing on both Intake/Exhaust ('03-'04 only have Intake)
- Revised Intake (Not 100% sure of this)
- New lower plenum
- New ECU map
- New Engine Internals
- Suspension change in '05's versus 03'-04' (Was changed in 04.5 I believe as well)

 

"Suspension change in '05's versus 03'-04' (Was changed in 04.5 I believe as well)"

just bought the 05 supsension.....however, the cd004 and cd005 part #s from front shocks still shows it as the unrevised versions......did nissan keep these two part #s the same and change other #s/lettering on the 05 suspension? Can you confirm or advise me where to go to get confirmation of this? thanks.