Big singles? Or Quads? - Pontiac G8 Forum: G8 Forums -
Exhaust Tech Headers, Catbacks, Mufflers, lack of mufflers

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post #1 of 50 (permalink) Old 01-28-2013, 10:19 AM Thread Starter
Camshaft Master
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Location: Baton rouge, LA
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Big singles? Or Quads?

Debeting with the wife, which i want.. I like the thought of just having two big singles.. but she likes the quads..

Thoughts? In case you're wondering i'm looking for best overall performance but alot of growl..alot.. I want this thing to sound it it'll suck a cow in..LOL..

I'm still debeting on which Headers to go with, leaning towards Kooks, but the money is a big part of the "thinking". I see alot of guys run the JBA and OBX LTs with good success, I like the price of the OBX x pipe and down pipes.. but again coming from the import world, OBX sucks over there..

Headers / Exhaust is what i'm doing first and it should be done here in the next few weeks, but i'd like to get some help or advice. I'm looking for best overall power output.. i dont care about noise, honestly.. i want it to sound mean, loud and produce a ****ton of power..

DDTECH -Custom Cams/Tuning/Engine building
Custom Camshafts, VTEC Killers, and Rollers for your Honda
08 G8 GT - Daily 13.5@107mph 2.0 60'(STOCK)Its got some mods now.... And tuning.
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post #2 of 50 (permalink) Old 01-28-2013, 10:58 AM
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I've had both on my car at one point or another. Quads look 10x better on this car, IMO.


2008 Liquid Red G8 GT
RotoFab CAI, Pace Setter long tube headers,
X-Pipe, Hooker Maxflow Axlebacks waiting to be installed, Cincy Speed dyno tune.

355 rwhp/370 lbs ft tq.

30% Tint, V8 6.0 Litre badges, Pontiac lettering debadge on the trunk
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post #3 of 50 (permalink) Old 01-28-2013, 11:03 AM
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^ I second this. 3 inch quads look fantastic.

OGOC (Ontario G8 Owners Club)
09 PBM V6 (Traded)
GXP Diffuser, Mace Insulators, Solo, CAI, FE3, BMR, much more
Replaced with
09 WH GT, Solo Mach, HF Cats, CAI, LS3 Cam, Pat G Tuned, FE3, Whiteline, SuperPro, Centric/Hawk, DAI Autobahns 19x8.5/+35, RE760s
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post #4 of 50 (permalink) Old 01-28-2013, 11:09 AM
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Had both, quads look better, but I prefer Pypes sound....

Trigger - Fully Loaded 2008 Stealth Blue Pontiac G8 GT


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post #5 of 50 (permalink) Old 01-28-2013, 12:07 PM
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i've ran both, and i'm another one that prefers the quads.
see sig pic.


02 powerstroke - slightly modded
04 gto - stroked
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post #6 of 50 (permalink) Old 01-28-2013, 12:11 PM
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3.5" quads

09 PBM G8 GT -
Built By Rick Crawford Racing
404 Stroker / Ported LSA Blower / Kooks / Built Trans / Alky Methanol
RCR Heads & Cam / Built 6l80 / TPIS TB / ATI Balancer / Vaporworks & V Pump
Varex X-Force / CTS-V Brembos / BMR / VMR V701 / H&R Coilovers / Holden SSV Conversion

9.89 @ 138.8
09 WH GXP M6 (#1827 of 1829)
Roto-Fab / Solo Mach Shorty
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post #7 of 50 (permalink) Old 01-28-2013, 12:11 PM
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3.5 inch quads with a GXP diffuser is the way to go with these cars IMO. The only singles I would consider would be the SLP ones that form fit the the GT diffuser. Note that the SLPs dont look as good with the GXP diffuser though because of the larger area to fill.

-2009.5 MSM Premium GT-

Mods:Yank 2800 stall, Brembos, OBX Headers to Maxflows, VCM, RCR Intake, HSRK, LS7 Maf and tuned by Pat G.

10.53 at 100 in the 1000'.....8.25 at 88 in the 1/8....1.92 60 ft

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post #8 of 50 (permalink) Old 01-28-2013, 12:18 PM
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Quads look the best in my opinion.

2009 G8 GT - White Hot/Onyx - Premium, Sport, No Roof
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post #9 of 50 (permalink) Old 01-28-2013, 12:32 PM
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Quads for sure. Looks perfect with our cars

2009 Liquid Red G8 GT Sold!!!

Current: 2014 Black Mustang GT 5.0 6M Premium Pack/Security Pack

Mods: Roush Axleback's, 5% Tint, GT500 Rear Valance, 4in Quad Tips, Eibach Sportlines, BMR Panhard Bar, 20in AMR Charcoal Rims, 255/285 Hankook Ventus V12 Evo2's, Bama Tune, more to come...

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post #10 of 50 (permalink) Old 01-28-2013, 12:42 PM
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Solo Quads...Great sound, great looks, great price !!!

2009 PBM G8 GT. Premium package.
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post #11 of 50 (permalink) Old 01-28-2013, 01:13 PM
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I have Solo Quads also and they look and fit perfect.

2009.1 White Hot G8 GT Sport & Premium packages/ Onyx & Red leather
GXP bumper, Roto-Fab intake, Pacesetter headers ,Magnaflow 12468, Solo Axle-backs, SLP UDP, 30% tint, 5000k HID's Tuned on hptuners by Shane

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post #12 of 50 (permalink) Old 01-28-2013, 01:17 PM
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I vote for big quads...They look pretty good. Any single tip would have to be the SLP trapezoidal style tips.

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post #13 of 50 (permalink) Old 01-28-2013, 01:56 PM
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SOLD--2009 G8 GT, Livernois "Mini Stroker" with 1C Cam
2300 Maggie, 1:1 Cog Drive, 60# Injectors, Roto-Fab Intake
Kooks 1 7/8 Mids with High Flow Cats, Borla Cat Back
ZL1 Fuel Pump, Kenne Bell BAP, 160 Degree T-stat
Camaro 3.27 Rear Diff, Livernois Tune
Monroe Sport GT Shocks/Struts with King Springs
BMR Front Sway Bar, BMR Strut Mounts and Bearings
Camaro Transmission Pan
Staggered Bretyon GTS-AV Wheels, Nitto NT05 Tires
605rwhp and 569rwtq
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post #14 of 50 (permalink) Old 01-28-2013, 01:56 PM
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I vote quads. Have had Pypes, and while they look good, the quads look better.

2016 Jungle Green Metallic Chevy SS - Sunroof/Spare/Stick
2011 Radiant Silver Metallic CTS-V Wagon - Corsa Axleback, AirAid Intake *Sold 7/7/16*
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post #15 of 50 (permalink) Old 01-28-2013, 02:46 PM
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Originally Posted by Troy Trackbeast View Post
I vote for big quads...They look pretty good. Any single tip would have to be the SLP trapezoidal style tips.

2009 M6 G8 GXP - Sold
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post #16 of 50 (permalink) Old 01-28-2013, 02:53 PM
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Big singles? Or Quads?

SLP tips.

Though a bit bias here. Ha

Sent from App

2014 SS "Houston Stock"

SW LTs-3" catted X
Corsa Mufflers
Pat G Tune

12.08@114.45 (stock tires suck)
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post #17 of 50 (permalink) Old 01-28-2013, 03:35 PM
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A set of SSClones. 2 1/2" inlet. Either 3 1/2" or 4" outlets, your choice.

G8's *ss be bad lookin'.

Still The Original "Cheap-@ss" Modder
Sit Down, Shut Up, And Get To Work!
You Lost; Get Over It!
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post #18 of 50 (permalink) Old 01-28-2013, 03:54 PM
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Re: Big singles? Or Quads?

Do big quads, atleast 3.5" or even 4".

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2009 SRM G8 GT, Premium & Sport Package..
Performance: Some, but not enough..
Appearance: Too much to list..

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post #19 of 50 (permalink) Old 01-28-2013, 04:34 PM
every village has one
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3.5 inch quads with a GXP rear diffuser.

things are not as they appear to be.........

2009.5 LiquidRed/OnyxRed, Premium Package
e85 Surprise Package
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post #20 of 50 (permalink) Old 01-28-2013, 04:44 PM
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With GT diffuser, Pypes oval tips.(mine are perfectly aligned) With GXP diffuser, big quads.

White Hot '09 G8 GT, Prem/Sport

Current: Pypes Violators, Magnaflow 12468 "Drone Killer" in midpipe, Spectre CAI, Cortex, UPR Catch Can, VG Sharkfin, LEDs, Smoked Bumper Lenses, Morimoto 4300K HIDs, V6 Taillights, Redline Armrest Cover, Rear Aux Cables, Autodim Mirror, Pontiac Trunk Mat

Future: Window Tint, Headers, GXP diffuser, Cam

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