ive got a 05 5.3L ext cab w/ a 3in. cat back flowmaster super 44 3" to dual 2 1/2" exhaust. the rest is stock. where should i start to make more power. want to do it right. not worried about price just dont know where to start first.
ive got a 05 5.3L ext cab w/ a 3in. cat back flowmaster super 44 3" to dual 2 1/2" exhaust. the rest is stock. where should i start to make more power. want to do it right. not worried about price just dont know where to start first.
here is a good page that should help you out a ton.
Bolt-ons for NBS 99-06 GM fullsize - PerformanceTrucks.net Forums
as far as next, i would do a cold air intake and a custom tune.
2004 RCSB lowered 2/4 with boss 330 22" black wheels. 4.8 w/ Pacesetter LTs, ORY, 3" cutout, K&N 77 intake, 224/224 on 112 Lunati cam, 160 t-stat, W4M tune.
If you are going to make several mods a few at a time, say LT headers and CAI then wait for other things, get yourself a Nelson Custom Tune they offer free upgrades whereas the others want to charge ya $40
Chris S The GoFastPadre 00 Sierra ECSB Z71 Mods so far Headers Dual HFC's Flowmasters K&N CAI and much more to come. 06 Grand Prix no mods yet
Well If your not worried about price, get a 6.2l engine and a level 5 4l80e or a built 6l80e. 6.2l with direct port nitrous, or a trick turbo would make you smile ear to ear!!! If you are sticking with the 5.3 I would get a tune first. Then get headers, intake, locker and gears, 2/4 drop. THEN after that buy a cam, valve springs, pushrods, a stall and a shift kit w/ servos. Maybe even a set of rockers. maybe a nitrous kit. Once you have accumulated all those things in the second list do a weekend install, and order a retune from allen and install that after the cam and stuff is installed. IMO
Is there any brands recommended that will benifet me for further upgrades? Im looking at the volant cool air and the dynatech system or pacesetters. I see that a lot of people have the pacesetters LT's. With the pace setters how should i go about the mid pipe? do i have to get ride of the cat's? should i go ahead and do a true dual or a Y- pipe. I know with the duals i can run a X or H pipe.
If your going to get the off road y pipe, wich most do, You will also have to get the rear o2 sensors deleted '' for off road only of course. '' In the nelson tune so you dont get a SES light or Service engine light. I would go ahead and get the y pipe and just run 3'' all the way back to a muffler, then either dump it or run it out the side with some nice tips. Cheaper and I really think that it would flow better than a true cat back.
ok. how do i go about a nelson tuner? and do i have to get a tuner for everything that i do to the truck? or does it have room for changes? can i put on the CAI and LT w/o a tune or do i need that to run right after them.
Pacesetter come with 3 bungs? If they did that would be great for a wideband.
Step 1. crus at it.
Step 2. get a hammer.
Step 3. torch it.
Maybe when I got Davids headers he had one welded in... but it was perfect for the wideband yes. Thats were I put mine.
can i put on the headers and cai before i get the tune or should that be done together? is afe a good intake sys? its a closed box, dry filter and a comes with a lower "scoop" for 314.00. or is volant w/ the scoop better? on the headers do i need to run the egr or air injection pump?
Last edited by hellrunner05; 05-08-2008 at 07:55 PM.
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