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Old 01-02-2013, 11:28 PM   #541
BlakRam
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I would go with LT's. Mids will bolt up to a cat back. Just depends on if you are doing it yourself or having someone do the work.
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GXP front fascia, VMR 710
VCM CAI, Tune by Shane, 337rwhp/344rwtq, track 1/4@???
Maggie 1900, 3.0, LS9's, BAP, 394rwhp/424rwtq track 1/4@???
ARH 1 7/8, 457rwhp/471rwtq, track 1/4@11.92 1.76 116mph
OD Cog 500rwhp/554rwtq, track 1/4@???
ID850's, 500rwhp/563rwtq, track 1/4@???
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Old 01-02-2013, 11:36 PM   #542
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Saw a white GXP the other morning at midrivers/94. That was the first time I've seen a whiteGXP in town.
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2009.5 SBM G8 GT- Premium/Sport/Roof
GXP front fascia, VMR 710
VCM CAI, Tune by Shane, 337rwhp/344rwtq, track 1/4@???
Maggie 1900, 3.0, LS9's, BAP, 394rwhp/424rwtq track 1/4@???
ARH 1 7/8, 457rwhp/471rwtq, track 1/4@11.92 1.76 116mph
OD Cog 500rwhp/554rwtq, track 1/4@???
ID850's, 500rwhp/563rwtq, track 1/4@???
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Old 01-02-2013, 11:42 PM   #543
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Longtubes for sure, especially if you're planning on doing a cam in the future.
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Old 01-03-2013, 10:19 AM   #544
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find the Facebook group "STL G8" or find m and I'll add you. Facebook.com/ryanbomb
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Old 01-03-2013, 10:41 AM   #545
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I'm bolting em up myself, I figure if I can fix my home's AC unit this past summer, I can tackle the headers...lol. Have any of you guys had any issues passing emissions with the Lt's? Any clearance issues or bottoming out?
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Old 01-03-2013, 11:00 AM   #546
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No clearance issues these aren't Fbodys heh.

You can pass emissions with the proper tune no issues.
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Old 01-03-2013, 11:20 AM   #547
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Any problems with the visual inspection though? I've been debating mids just for the simplicity of not having hacking up my Borla and no problems with passing emissions.

I also debated SLP LT since they should also bolt right up and have cats, but heard they're not as efficient as the Kooks 1-7/8 mids and they're only 409 instead of Kooks 304 stainless. It'll probably be a while before I pull the trigger so I have plenty of time to research.
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Old 01-03-2013, 11:34 AM   #548
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Quote:
Originally Posted by Neverending View Post
Any problems with the visual inspection though? I've been debating mids just for the simplicity of not having hacking up my Borla and no problems with passing emissions.

I also debated SLP LT since they should also bolt right up and have cats, but heard they're not as efficient as the Kooks 1-7/8 mids and they're only 409 instead of Kooks 304 stainless. It'll probably be a while before I pull the trigger so I have plenty of time to research.
Most peope i know always know a "hookup" to get past the lack of cats part.

One good thing in IL is no visual
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227/243 .613/.623 114,Ported L92 heads, Procharger D1SC, 3 Row intercooler, Race bypass valve, ID850's,
Alky control meth kit,ZL1 pump,KB BAP, Pacesetter LT's, Full 3" exhaust w/magnaflow race mufflers,Yank3200
Spohn Trailing arms,UMI Adjustable toe links
10.55@134.3 1.60 - SOLD!
2008 C6 A6-Cammed/Stall 10.62@126.7 1.44' SOLD
2010 Denali Sierra AWD 6.2-Bolt ons,Leveled,24's
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Old 01-03-2013, 12:45 PM   #549
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I will let you know how the visual goes next month. I although have the free flowing cats. I normally just go to jiffy lube. I don't think they are gonna know what they are looking at.
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Vararam CAI, Slp Underdrive pulley, Rick Crawford modified intake, Catless Magnaflow Catback, Coated Pacesetter Headers, Steigemeier Ported TB, 3.45s and HPTuners by Shane

343.8 RWHP 364TQ ( CAI, catback and tune)
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Old 01-03-2013, 12:49 PM   #550
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I'd be surprised if anyone notices high flow cats....

Do they even do a visual in MO anymore? I thought they just hooked it up to the OBDII port.

Also, if anyone wants or knows anyone that wants a set of SOLO HFC's, I have a brand new set I just got that I'm looking to sell.
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Old 01-03-2013, 01:05 PM   #551
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okay so I know even less than I thought I did...lol. So, high-flow cats are illegal? And if they are, don't all Kooks shorty's and Mid's come with them? Do most of you go with 3/4 or 7/8?
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Old 01-03-2013, 05:02 PM   #552
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Quote:
Originally Posted by OfallonG8GT View Post
okay so I know even less than I thought I did...lol. So, high-flow cats are illegal? And if they are, don't all Kooks shorty's and Mid's come with them? Do most of you go with 3/4 or 7/8?
I am pretty sure HFC are not illegal. I have things that look like cats but there is nothing in them. They would not pass if they knew what they were. I live @ HWY K and 40 as well, if you want to see my set up I can swing by for you to take a look.

Also The shorties do not come with cats. They bolt up to the factory cats. You would see minimal gains with the shorties.
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2009 MSM GT

Vararam CAI, Slp Underdrive pulley, Rick Crawford modified intake, Catless Magnaflow Catback, Coated Pacesetter Headers, Steigemeier Ported TB, 3.45s and HPTuners by Shane

343.8 RWHP 364TQ ( CAI, catback and tune)
Best 1/4 12.3 @ 112 1.85 60ft

Last edited by willy lowshay; 01-03-2013 at 06:33 PM.
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Old 01-03-2013, 06:29 PM   #553
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I am running Dynatech LT headers and X-Pipe catless, i live at n and 40 if u wanna meet up to see/hear my car...
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Old 01-03-2013, 06:34 PM   #554
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Quote:
Originally Posted by L2mb View Post
I am running Dynatech LT headers and X-Pipe catless, i live at n and 40 if u wanna meet up to see/hear my car...
I am curious to how similar our cars sound. I have the magnaflow catback with the pacesetter headers. No cats
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2009 MSM GT

Vararam CAI, Slp Underdrive pulley, Rick Crawford modified intake, Catless Magnaflow Catback, Coated Pacesetter Headers, Steigemeier Ported TB, 3.45s and HPTuners by Shane

343.8 RWHP 364TQ ( CAI, catback and tune)
Best 1/4 12.3 @ 112 1.85 60ft
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Old 01-03-2013, 07:07 PM   #555
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u made 343whp? where did u get it dynoed? was that with the headers?
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Old 01-03-2013, 07:10 PM   #556
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Quote:
Originally Posted by L2mb View Post
u made 343whp? where did u get it dynoed? was that with the headers?
The 343HP was at Steigemeiers Speed Shop and was Cold Air intake, Catback and Fap tune. I have not been dynoed since the longtubes and ported throttle body.
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2009 MSM GT

Vararam CAI, Slp Underdrive pulley, Rick Crawford modified intake, Catless Magnaflow Catback, Coated Pacesetter Headers, Steigemeier Ported TB, 3.45s and HPTuners by Shane

343.8 RWHP 364TQ ( CAI, catback and tune)
Best 1/4 12.3 @ 112 1.85 60ft
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Old 01-03-2013, 09:59 PM   #557
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Anyone up for some poker this Sat...I've got a game planned.
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2009.5 SBM G8 GT- Premium/Sport/Roof
GXP front fascia, VMR 710
VCM CAI, Tune by Shane, 337rwhp/344rwtq, track 1/4@???
Maggie 1900, 3.0, LS9's, BAP, 394rwhp/424rwtq track 1/4@???
ARH 1 7/8, 457rwhp/471rwtq, track 1/4@11.92 1.76 116mph
OD Cog 500rwhp/554rwtq, track 1/4@???
ID850's, 500rwhp/563rwtq, track 1/4@???
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Old 01-04-2013, 07:52 AM   #558
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who drives a PSM or MGM colored g8 and works at citi in ofallon? anyone on here?
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Old 01-04-2013, 02:38 PM   #559
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hey guys im new to the forum and im thinking of getting a g8 real soon and i found one on craigslist down in popular bluff and was wanting to know if anyone knows of this car or it is someones on here. 2009 Pontiac G8 GT - $19500 (Poplar Bluff)

Car is equipped with 2300 magy, LS 9 injectors, water methanol injection. Nice leather interior, heated seats, remote start, 6 disc cd changer, cold ac, super clean car. Has prior salvage title. Very light frontal damage. Didn't deploy airbags. Rebuilt with all GM parts. Not your average rebuild!!! Has custom tunning and Dyno sheets. owner said it put out 515hp and 640 tq to rear wheels.
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Old 01-04-2013, 02:41 PM   #560
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Thumbs up WH GXP at Westport

WH G8 GXP
near Westport
I had to make sure it wasn't mine!
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