Sold my Z28 yesterday and will be cruising the greater Houston area for a 2005 GMC Crew Cab. So this is sort of my hello post to the board, but I also was wondering what are good frst performance mods to wake up these trucks a bit after being properly broken in.

I will (at first) limit myself to stuff that will not void the warranty (and credit card for that matter), but I'm really just looking for a few good places to start my 5.3 V8 mod education. I'll do plenty of searches on this board, but just wanted to say hi and get a good basics thread started if there wasn't one that I missed.

Thanks!

 

Nelson Tune
CAI
Cat Back
Long Tubes
I dont think these will void your warranty. If you want to just go ahead and get the most perf. get a Radix.

 

Or wait and get an 06 with the 345HO 6.0

 

DAMNIT THAT PISSES ME OFF!

 

That would just take all the fun out of it.

I'm going to take advantage of the low prices on the 2005's while I can.

 

A tune of some sort (I have Wait4me and really like it)
CAI (I gutted my factory box, K&N, and will be getting an Airaid MIT)
Free mods (TB bypass, etc)
E-fans (will be one of the next mods for my truck)

Good luck with the truck... you can't beat the prices right now!!

 

Its a shame you cant get the 345HP 6.0 in a Z71 RCSB



KBOBO
Where are the track times?

 

Whats first - Well, with my experiences with GM and rail dust, IMO, first should be to claybar and wax that sucker.

I usually do like such - Tint windows, do my gauges, solid break in on stock motor then switch to Mobil 1, then intake and exhaust, any free mods you want to do, then a perf tune and shift kit / servos to wrap it all up.

A tune will be the biggest noticeable improvement, by far.

 

You can save a little money on an air box by just getting a K&N and then cutting a hole in the side of the factory air box. I cut a hole approx 3"x6" directly behind the headlight. I could tell a big difference above 4000 and you can't even see where the hole is cut unless you know it is there. But that was the second mod I did. The radix was first!

 

Sounds tempting, although I fear it would be counterproductive to proper break-in procedures.