This site
http://www.accessoriesgiant.com/nissan.html has the listed performance part below for the Titan.
Accessory Search Results Page: 1 of 1
Current Vehicle: 2004 NISSAN TITAN
Vendor Part Name(s): ALL, HIGH PERFORMANCE AIR INTAKES
« New Vehicle Search
Search Results » Click the column headers to sort by that column.
Order Vendor Part # Description Retail Availability
AIRAID (A86) 850048 AIR AID FILTER
$51.70
IN STOCK
VENTSHADE CO (V15) 994001 HOOD SCOOP COWL INDUCTION
$95.44
IN STOCK
PILOT (P25) PM649 HIGH PERFORMANCE AIR INTAKES
STANDARD KIT, FILTER INCLUDED
$11.18
IN STOCK
APEXI (A71) 821N023 CAMSHAFT
CAMSHAFT EX 260-8.9
CALL
CALL
APEXI (A71) 821N021 CAMSHAFT
V-MAX SPL.
CALL
CALL
APEXI (A71) 821N101 CAMSHAFT
CAMSHAFT PS13
CALL
CALL
APEXI (A71) 821N117 CAMSHAFT
CAMSHAFT S14/S15
CALL
CALL
APEXI (A71) 821N001 CAMSHAFT
CAMSHAFT IN 260-8.9
CALL
CALL
APEXI (A71) 821N001 CAMSHAFT
CAMSHAFT IN 260-8.9
CALL
CALL
JBA HEADERS (J21) 1400S CAT4WARD SHORTY HEADERS
5.6L, STAINLESS STEEL
CALL
CALL
APEXI (A71) 821N007 CAMSHAFT
V-MAX
CALL
CALL
TRUE FLOW (T13) 70510 COLD AIR INTAKE SYSTEM
5.6L
$276.14
OUT OF STOCK
__________________

---------------------------------------------------
'04 SE, Radiant Silver, RF Bench Opt., Chrome 20" REACTION wheels & Billet Grill
MODS:
K&N AirCharger, Sirius, Flowmaster 70 w/ dual out
PERFORMANCE:
Stock: 273 rwhp @ 5000 rpm, 339 rwtq @ 3300 rpm
w/Mods: 293 rwhp @ 5000, 357 rwtq @ 3900 rpm
Link to Dyno