I am brand new here, but you all seem very knowledgable about these trucks. If you could do it over again, on a 2003 Z71 5.3 SBRC what would your first modification be?

 

air filtration kit or if you have a lot of $$$ to spend, forget the air filter kit and buy a supercharger (e.g. whipple). my next new truck (years down the road) i will spend the $$$ on a 6.0 swap and a supercharger. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by KeukaZ71:
<strong> air filtration kit or if you have a lot of $$$ to spend, forget the air filter kit and buy a supercharger (e.g. whipple). my next new truck (years down the road) i will spend the $$$ on a 6.0 swap and a supercharger. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">now your talking! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

The first thing I did and would do again is a good free flowing exhaust system. Then cold air intake second.

 

Yup, do a 6.0 and a s/c either the Whipple or the new Radix Magnacharger.. get a shift kit and a 3000stall TC. for right now you can do all the free mods. Long tube headers, and a cat back would be nice too.

 

If I started all over, the first thing I would do is a torque conveter. Then go with full lengths, intake and the list goes on and on from there.

Kent

 

How much money are you working with??

If you have the $10K do the 6.0 and a S/C if not start with the 'free mods' after all they are free. Making it breath beter will allways help either with an ait-intake or an exhaust if done right either will have similar power gains of the two the exhaust would be more enjoyable (Louder).
For the 1/4 the best improvment for the money, save supercharging or NOS, would be a high stall conveter.

So, how much money are you working with??

 

How much money are you working with??

If you have the $10K do the 6.0 and a S/C if not start with the 'free mods' after all they are free. Making it breath beter will allways help either with an ait-intake or an exhaust if done right either will have similar power gains of the two the exhaust would be more enjoyable (Louder).
For the 1/4 the best improvment for the money, save supercharging or NOS, would be a high stall conveter.

So, how much money are you working with??

 

Sorry guys, I was actually tailoring this question to Intake, Exhaust or HPP3. Nitrous would be on the high dollar side of what I planned right now for my truck, it has 214 miles.
A blower and 6.0 swap may be frowned upon by my local service department.

 

I also meant ot ask where I can find info on the Hamm headers, they seem to be the common choice in peoples signature.