i have been on thiscomputer for alest 5hours for the last two days shearching and looking for items that i would like to buy to gain hp but i havent came to a conclusion or what brands or the actully hp and tq gains... i was hopeing this is where yall would come in could yall make a list of things i could do to my truck the bands and the order i should do it in i have 05 gmc 5.3 it has flowmaster exhaust but friday im putting single in dual out dynomax muffler on! i just bought the truck and it has already been tuned governer is off and the shift points has been changed and u can feel the hard shift een when drivin normal in 1st and 2ndbut i have no clue whattune or brand which sucks! but i was wanting to know the best cai and TBS and other items that can help me i dont want to get a turbo or supercharger so thanks

 

Welcome to PT.

How much do you want to spend?

 

doesnt really matter ill be buyin things little at a time and thanks im glad to be apart on here! i would like to get cold air intake first tho what brands? and do u know where i can get good lookin cowl hoods

 

Stylin concepts has some cool hoods....goodmark and reflexion are the most popular ones. I would save your money on a CAI and just get a K&N filter, you wont see any gains from just an intake.

A good starter kit is always longtube headers, 212/218 cam, 3000stall torque converter (if you dont do much towing), and tune from one of the sponsors (blackbear, wheatley, nelson, etc.)

 

I like my volant CAI. Guys also have good luck cutting the bottom of the stock airbox out and throwing a K&N filter in there.

I'm assuming by TBS you mean Throttle body spacer. -- Only thing that's good for is keeping the papers from flying off of your desk when the fan is on.

 

how hard is it to put cam in? do u have to reprogam anything? and i been thinking bout volant cai did you notice gains?

 

or if ya wanted an ""custom intake"" search up I think it was..How did you make your intake pipes... Some guys made it out of 4 inch pvc

 

Save your money on all that stuff CAI, Throttle Body Spacer, etc and put that towards some Long Tube headers. Cal speed has LT headers starting at $349, they are very affordable.. They are a sponsor on here so I will give a link.

CalSpeed & Performance Stainless Steel 1-3/4" Long Tube Headers with 3" Stainless Y-pipe for 99-09 Silverado


You might want to get a retune done after the Headers, as you don't know who tuned it before and really what all has been adjusted.

If you get a cam say larger than a LS6 cam then yes you will really need to get a retune for the cam. It will not drive or idle correctly with a decent size bigger than stock cam.

 

how do i go about getin retuned? i feel stuck with the tune on it now c i dnt have hand held or anything. and diidnt the 05 gmc shut of around 98 99 mph?

 

Any one of the sponsored tuners here will be able to tune it for you.

Blackbear, Wheatley, Nelson, etc.. Who did you buy the truck from, maybe you can ask them who tuned it previously if it was from a private seller? IF you found out who tuned it previously then they might give you a small discount on the retune since you bought the truck from the previous owner. **Also sometimes the PCM has the a sticker on it that says the tuners name or logo** Look for the sticker possibly.

Normally if you get a custom tune from a reputable tuner they will offer free retunes if it is for basic mods / bolt ons, but if you upgrade to cam or FI then it will cost a little extra.


Yes the stock speed limiter is 98/99mph from the factory on the trucks.