ok ive seen alot of people asking about performance on the 06-07. since i have the ls4 i took the liberty of posting below all the links of things i use and want.
anyone with the other engines post what you got, have seen, or just want here to.
)))

 

5.3L mods:
Heads: http://livernoismotorsports.com/view.phtml?f_cat=Performance+Packages%3A+General+M otors%3A+LS1+%2F+LS2+%2F+LS6%3A+Cylinder+Heads
Cams
http://livernoismotorsports.com/view.phtml?f_cat=Performance+Packages%3A+General+M otors%3A+LS1+%2F+LS2+%2F+LS6%3A+Camshafts
recommended:
http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Pro duct_Code=54-412-11&Category_Code=XFIRPM

lifters:
http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Pro duct_Code=850-16&Category_Code=
springs:
http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Pro duct_Code=26915-16&Category_Code=
rotors:
http://store.summitracing.com/partdetail.asp?autofilter=1&part=SSB%2D23110AA 3R&N=700+4294806411+4294908216+4294908176+4294 839882+4294922533+4294859634+115&autoview=sku
pads: http://store.summitracing.com/partdetail.asp?autofilter=1&part=EBC%2DDP41762 R&N=700+4294806411+4294908216+4294908176+42949 22533+115&autoview=sku
nitrous:
http://store.summitracing.com/partdetail.asp?autofilter=1&part=CCA%2D82235&a mp;N=700+4294806411+4294908216+4294908176+42949252 39+115&autoview=sku
lowering kit:
http://store.summitracing.com/partdetail.asp?autofilter=1&part=EIB%2D38112%2 D140&N=700+4294806411+4294908216+4294908176+42 94925130+115&autoview=sku
exhaust:
http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE%2D16727&a mp;N=700+4294806411+4294908216+4294908176+42949234 29+115&autoview=sku
downpipe:
http://hoganperformance.com/DP7S.htm
cut out:
http://www.quicktimeperformance.com/QTEC/index.php

MAF: http://store.summitracing.com/partdetail.asp?autofilter=1&part=GRN%2D350128% 2DC&N=700+%2D160885+%2D59080+%2D59120+115& autoview=sku
CAI:
http://www.knfilters.com/search/product.aspx?Prod=63-3059
throttle body spacer: http://www.streetbeatcustoms.com/chevygm.html

if you have the money: http://www.cartuning.ca/index2.php
shift kit: http://www.3800performance.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=TEP-SK
tuner:
http://www.diablosport.com/index.php?module=htmlpages&func=display&pi d=63

 

For the 3.5L.

NOT A DAMM THING

 

im sorry...... eventually they will come. mayby see what other gm products have that engine, and modify that way???

 

what are you looking for on the 3500 ?

 

ANYTHING!! I mean ive got the k&n drop in filter but cant find anyhting else

 

does the monte have the gen4 3500 or the high value 3500 ? i dont remember if the 06 get the gen 4 ?
if its the gen 4 there is some stuff out there but if it's the high value V6 there is stuff on the way

 

I understan how frustrating it is that these cars are more economical than performance. I can suggest just a few things

MPD INC RAM AIR HOOD TO THE COLD AIR INTAKE, BEST WAY OF DUCTING THE AIR AND GETTING THE MOST PERFORMANCE
out of the intake

DUAL EXHUAST

HP TUNING KIT

If you were to race at a track, go for a 50 or 75 shot of nitrous, cheapest way to get a big performance boost at the track

If I ever see anything more on the 3.9 or 3.5 engine to come out performance wise I will post the findings

I definately think save the money and upgrade to a v8 engine in the ss, pay the car off and use your v6 for many years and then do a engine and tranny swap, I will do this much later but worth the investment for performance, I would be happy with the v8 and a shot of nitrous and tuned pcm to get a 13 second car rather than a 15.9 second car at the qurter mile track.

 

I have an 06 LT with the 3500 and I would much rather modify it than a V8. Just for the simple fact to **** off the wanna-be ricers more than what a V8 would.

 

for the ls4, how much of a difference does the throttle body spacer make and how hard is it to install