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LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

what's next

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Old 07-03-2009, 12:22 PM   #1
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Purchased 2006 GXP on June 1
changed plugs
GP products all around
Magnaflow exhaust
K&N airfilter
Predator tune
any performance suggestions?
Interior; to do list
tint windows and new mats for cabin and trunk
any suggestions?
thanks
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Old 07-03-2009, 12:40 PM   #2
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Here look at my sig. The only things missing are a heat soak reduction kit, rockers, and porting the intake and exhaust manifolds. There is quite a bit you can do to these cars. And they sell a turbo kit for it too.

-Mike
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05 Black GXP - 160 , HI-Flow Res., FWI, TrnsGo S/K, Al. Trns. Pan, Ply MM's, TEP Trns. w/ 3.29's , DT Hdrs, Catless DP, Jet TBS, VMS Tune, LS2 Tr. Cls, XP-104 IR Plugs, Ft. & Rear Stb's, Smooth Int. Elbow, ZZP TB, SLP 1.85 RR's, Intense Oil Res. PR's, Roy. Ppl Oil, Stealth Trs. fl., HSRK, Dual Catch Can's, LS4 P.I., Dual MH Tr. Clrs

1997 Blue/Green Grand Pirx GTP - 1.9 Rockers, SS Headers, Tucker PCM, 3" DP and HI-Flo Cat., Wiz-Air CAI, EGR Delete, 180* (Rest in peace...12/26/10)
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Old 07-03-2009, 12:56 PM   #3
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yes it is quite impressive...but alot of it looks looks like hieroglyphics to me! but i am learning. New question what would be your next two mods if your car was set up like mine?
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Old 07-03-2009, 02:08 PM   #4
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hieroglyphics, I like your honesty.

1- Remove and clean your throttle body and Mass airflo sensor and don`t over oil the air filter.
2- Install a complete set of camber bolts and get an alignment at a good shop (not a dealer)
3- Get yourself a DiabloSport tuner, get it dialed in, then ask Lew for help(06MonteSS) this can also be used to clear trouble codes and also to monitor all sensors etc. There are other tuners but due to the first line this will suffice.

PS. Did you get the glove box manual with your car?
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Old 07-03-2009, 02:16 PM   #5
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If you want the best bang for the buck then get a highflow downpipe and rockers for the next mods. Those 2 will yield the most hp and torque.

I think he has the Predator already from his 1st post.

-Mike
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05 Black GXP - 160 , HI-Flow Res., FWI, TrnsGo S/K, Al. Trns. Pan, Ply MM's, TEP Trns. w/ 3.29's , DT Hdrs, Catless DP, Jet TBS, VMS Tune, LS2 Tr. Cls, XP-104 IR Plugs, Ft. & Rear Stb's, Smooth Int. Elbow, ZZP TB, SLP 1.85 RR's, Intense Oil Res. PR's, Roy. Ppl Oil, Stealth Trs. fl., HSRK, Dual Catch Can's, LS4 P.I., Dual MH Tr. Clrs

1997 Blue/Green Grand Pirx GTP - 1.9 Rockers, SS Headers, Tucker PCM, 3" DP and HI-Flo Cat., Wiz-Air CAI, EGR Delete, 180* (Rest in peace...12/26/10)
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Old 07-03-2009, 02:46 PM   #6
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Downpipe and rockers/springs/pushrods. Or a cam
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Old 07-03-2009, 04:44 PM   #7
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i liked the k&n cold air intake, and throttle body spacer, both are cheaper mods.
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2008 Grand Prix GXP: Fully Loaded
Magnaflow Exhaust, Hogan Downpipe /w straight, zzp shift kit, k&n aircharger, Tuned, 180* thermo, Ported TB, HS 1.8 rockers, Comp oil restrictive push rods, Duel springs, Cryogenicly frozen rotors from R1concepts, front and back STB's, Stage 2 Patriot Heads, ls6 intake, headers, High power moly oil pump, Custom 224 228 114 lsa cam, Solid poly motor mount
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Old 07-15-2009, 12:19 PM   #8
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thanks for the info
?oil the air filter
clean your throttle body and Mass airflo sensor ....check
yes I got the glove box manual
Investigating camber bolts, heat soaking and suspension
Next two mods; downpipe and TB (waiting for summerschool check)
downpipe...Hogan...other options
TB.....not the noisy one
Rockers/springs/pushrods...thatís a big step....called the brother in-law (mechanic and TA guy) he just laughed, I guess my offer of liquid compensation wasn't good enough.
thanks again guys
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Old 07-15-2009, 12:53 PM   #9
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?oil the air filter
Your K&N airfilter occasionally requires a cleaning, with this act you re apply a spray oil to the filter surface. Over oiling this can and does cause many problems as the oil migrates to the MAF and screws with the actual readings.


Investigating camber bolts
http://www.moog-suspension-parts.com....asp?cat=11264

check out the problem solver kits at the bottom of page, same for up to and including 2009. Front 2 kits required, Rear 2 kits required.

heat soaking
http://www.vectormotorsports.com/ind...mart&Itemid=28

No cutting or splicing of original wiring, one small hole to drill for sensor in your K&N filter base.
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Old 07-15-2009, 02:37 PM   #10
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Quote:
Originally Posted by 707chance View Post
Rockers/springs/pushrods...thatís a big step....called the brother in-law (mechanic and TA guy) he just laughed
you're right, that's a big step
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Old 07-15-2009, 02:37 PM
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