There are currently
no ECU upgrades available for the car because of its complex OBD-II
emissions system.
Cams
There are currently
no upgrades. There maybe ones for the 4 cylinder QR25DE in the works
because of the shared engine with the Sentra SE-R.
Intakes
There are two cold
air intakes - from Injen and Place Racing. Injen's is currently for
the 4 cylinder Altima. Place Racing's version is available for the
V-6 Altima.
Jim Wolf Technology is also developing a CARB approved intake.
Franken Car Performance has developed an intake for the V-6 Altima
as well.
A K&N air panel filter replacement is available for longer air
filter usage cycle but probably no where near the hp gain of a true
intake system replacement.
Exhaust
Mossy Performance has
developed a true cat back system. Some customers have reported noticeable
hp and torque gains.
Stillen has a muffler replacement for the V-6 but is not a true cat
back system.
Headers
There is no header
for the VQ35DE yet but Hot Shot Performance is rumored to have a
QR25DE version again for the SE-R which may or may not work on the 4
cylinder Altima.
Turbo/
Supercharger
Kit
Stillen previously
developed a kit for the V-6 VQ30DE powered Maxima. Last word was the
were exploring the possibilities of supercharging the VQ35DE cars.
Area 51/Street Concepts is developing S/C kit for the Sentra SE-R
(QR25DE) engine but no word on whether or not an Altima 4-cylinder
application is in the works.
NOS
There is no off the
shelf kit. A wet set up custom install will be needed because there
are no return fuel lines.
Suspension
Springs
Both Eibach and
H&R offer springs to lower the Altima.
Eibach offers two different sets. The Pro-Kit has an average drop of
1.3" front and 0.8" rear. The Sportline kit has an
average drop of 1.8" front and 1.0" rear.
H&R Sport Springs have an average drop of 1.5" front and
1.3" rear.
Configuration:
Four door mid-size sedan
Front wheel drive
Models:
2.5, 2.5 S, 2.5 SL, 3.5 SE
Engines:
Inline 4 2.5L: 175 bhp
V-6 3.5L: 240 bhp
Base pricing:
$16,649 - $23,149
Changes for 2003
·
New charcoal seat fabric (late availability), padded cloth front center armrest cover (genuine leather on leather-equipped vehicles), bright titanium interior accent colors for all models
·
Two new exterior colors - Sonoma Sunset and Crystal Blue
·
Standard automatic transmission, heated front seats, heated outside mirrors and simulated wood trim for 2.5 SL
·
Sport and Leather packages have been upgraded with additional equipment
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