clean nali man...anymore pics
Dynatech LT's with HiFlo Cats works & sounds great. Expensive but worth it
2008 K1500 Suburban 5.3L: 6" Rancho Lift, XD Rims, 315/70/R18 BFG A/T...awaiting engine mods
2003 K1500 Suburban 5.3L: Magnacharger RADIX @ 10lbs, FAST 50lb Injectors, Dynatech Longtubes w/ Hi Flo Cats, Custom Pipes w/ Flowmaster 44's, Eaton Rear @ 3.73, Century Racing 4L80E Trans w/ Circle D 2800 Stall, Custom Driveshafts, 33" Hankook ATM PRO, G-Force Dyno Tune....
try to get more picks up soon trying yo link a video what am i doing wrong? thanks for all the info. anyway search 05 sierra denali on youtube
Last edited by bam; 05-23-2009 at 10:40 PM.
Welcome to the forum and nice truck.
As far as recommendations, I would say sell the throttle body spacer and skip the high-flow cats. The stock cats flow just fine. You might look into OBX headers to see if they make them for the Denali. They also come with resonators that are a straight-through design but look just like cats.
thanks for the help although i have not been able to find any LT's except pacrsetters
Welcome man, google obx silverado ss headers or sparkteckmotorsports and you'll find the obx headers.
David,
2003 GMC Sierra Denali, LQ4, AWD, AWS, 4.10, Wheatley 93 tune, LT headers, GMPP CAI, BBK 80mm TB, MSD wires, E3 plugs, 160* T-stat, Flowmonster DI/DO, cutouts. Working on 4.8 heads, just purchased Comp 228R cam, 918 Springs, TI retainers, 7.4 hardend pushrods,
thanks sierrass so these should fit the denali also
Yes they will (should)and are around 500 shipped. Cant beat that. I've talked to a C3 owner on another site that is running them and loves them and said that they went on fairly easy with no clearence issues. But im shure that evry truck is a lil bit different.
David,
2003 GMC Sierra Denali, LQ4, AWD, AWS, 4.10, Wheatley 93 tune, LT headers, GMPP CAI, BBK 80mm TB, MSD wires, E3 plugs, 160* T-stat, Flowmonster DI/DO, cutouts. Working on 4.8 heads, just purchased Comp 228R cam, 918 Springs, TI retainers, 7.4 hardend pushrods,
Here is a link to the headers.
OBX Stainless Steel Headers: 99-05 Chevy Silverado SS - Sparktec Motorsports
David,
2003 GMC Sierra Denali, LQ4, AWD, AWS, 4.10, Wheatley 93 tune, LT headers, GMPP CAI, BBK 80mm TB, MSD wires, E3 plugs, 160* T-stat, Flowmonster DI/DO, cutouts. Working on 4.8 heads, just purchased Comp 228R cam, 918 Springs, TI retainers, 7.4 hardend pushrods,
Stainless Works or Dynatechs FTW.