Not happy with my G6 - Pontiac G6 Forum
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post #1 of 31 (permalink) Old 10-13-2010, 12:19 PM Thread Starter
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Not happy with my G6

Ok..

I have a buddy who has a red 2006 g6 gt and I swear to god its much faster, better response, and overall just quick compared to my 2007 which has mods done to it.

My brothers wife also has a red 2007 g6 gt all stock and every time he rides in my car he says it is way different in shifting etc. There g6 is also much faster and response as well compared to mine. I dont get this..

Does anyone have any adivce or clue of why this is? My g6 just doesn't seem to have the power and stuff like I think it should. Im super disappointed. Let me know any thoughts or inputs. Thanks.

2007 G6 GT Sedan Ivory White w/ 3.5L V6 Fully Loaded

Performance Mods: CRAB's O3 w/ FPU, Custom Magnaflow Dual Exhaust w/ 3 1/2 Tips, Resonator Removed, Motor Mount Inserts

Appearance Mods: HIDs Head/Fog 35w 6000k, Front/Back/Eyebrow 5% Tint, Tinted License Plate Covers, Debadged Sides/Rear but kept GT, Added GT emblems to sides, Arrowhead Overlays BLACK for front/rear - CHROME for wheels

Handle Mods: Strut Bar & Tires

Audio Mods: 2 Alpine 12" E's & Alpine 1000W Class D Mono Amp

To Do List: Dyno/Tune, Exterior White Underglows, Interior Red Underglows, Front Mud/Snow Guards, ""Painted Mirrors; Calipers; Tail Lights; Grille Insert & Assembly (All WHITE)""
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post #2 of 31 (permalink) Old 10-13-2010, 01:23 PM
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Its definately your custom Magnaflow exhaust. You'd be amazed as to how much torque you lost by doing a custom job. I was very shocked when I had my custom 2.5" exhaust done, and I thought I had more torque. Its crazy what the mind can make you think just by changing things around.

Your best bet is to get the GTR system or go back to stock. Im sure GT-R can chime in and help a little.
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post #3 of 31 (permalink) Old 10-13-2010, 03:18 PM
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It's definitely possible hndah8r. I never thought about that. The custom exhaust probably modified the back pressure for a performance decrease.
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post #4 of 31 (permalink) Old 10-13-2010, 03:23 PM
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so should I not do a 80 series fllowmasterwith oiut the res with dual outlet and the intake res out with the crabs intake?
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post #5 of 31 (permalink) Old 10-13-2010, 03:28 PM
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As a general rule, you can enlarge the pipe diameter of your OEM exhaust system by 1/4- to 1/2-inch to increase your horsepower. However, any additional increase in pipe diameter is likely to decrease your performance; specifically, low end torque.

Delfuego, if you are gonna do that, at least put a resonator on for the sake of sound.
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post #6 of 31 (permalink) Old 10-13-2010, 03:29 PM
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intake res delete and Crabs are definitly a good idea

2007 PONTIAC G6 GT

Waterfowler's 6 <---- Check out my 6
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post #7 of 31 (permalink) Old 10-13-2010, 03:36 PM
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Alot of people go with different setups cause they just want a different sound. Thats a majority of people too!! The other people that actually want an improvement in there exhaust system pay ALOT. GTR system for example is not the most expensive, but it is on the expensive side for the average joe. BUT it does improve performance and throttle response.

So its up to you really. Do you have 650 bucks for the GTR system or do you want to be like the rest of us and do you own cheap thing? I fall in the catagory of doing my own thing, but its biting me in the A$$!!! So most of us are SOL.

Now get this....if you were to go BACK to stock and just get a tuned WAMS PCM, you wouldnt believe how bad you'd beat you buddies 6er. Even without an CAI intake, tho it would help, its not neccessary for a good improvement. This is what I wish I wouldve done. I would like to just go back to stock, but have a CAI and tune and be done.

Last edited by hndah8r; 10-13-2010 at 03:46 PM.
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post #8 of 31 (permalink) Old 10-13-2010, 03:47 PM
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Do you not like your setup hndah8r?

2008 Pontiac Sedan - 3.5 V6


Mods so far:
Sylvania Silverstars, Custom Air Intake with Heat shield , 17' Salsa Rims from FastWheels.ca, Lower Grille Chrome Accents, Windows Visors, Hood Deflector, Debadged, Silver Overlays, Eyelids, Recessed Upper Grille, Tinted Tails, GM Strut Bar

Coming Soon - In Order:
Racingline MMI
Racingline Grounding Kit

Updated: 02/22/2011

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post #9 of 31 (permalink) Old 10-13-2010, 03:49 PM
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I hate it. Sounds ok, but as far as performance....eww... I already talked to GTR about this, and have since corrected it, but still miss my stock TQ.
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post #10 of 31 (permalink) Old 10-13-2010, 03:52 PM
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The best setup right now (IMO) is this: race MMIs, lowering springs, GTR exhaust, WAMS pcm, and Crab CAB.

Then later on you can get ported upper and lower intake manifolds and junk.

Last edited by hndah8r; 10-14-2010 at 03:32 PM.
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post #11 of 31 (permalink) Old 10-13-2010, 04:03 PM
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I really want GTR but im in canada so with taxes, brokage, duties and shipping it would be ridiculous

2008 Pontiac Sedan - 3.5 V6


Mods so far:
Sylvania Silverstars, Custom Air Intake with Heat shield , 17' Salsa Rims from FastWheels.ca, Lower Grille Chrome Accents, Windows Visors, Hood Deflector, Debadged, Silver Overlays, Eyelids, Recessed Upper Grille, Tinted Tails, GM Strut Bar

Coming Soon - In Order:
Racingline MMI
Racingline Grounding Kit

Updated: 02/22/2011

Best Auto Insurance | Auto Protection Today | FREE Trade-In Quote
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post #12 of 31 (permalink) Old 10-13-2010, 04:47 PM
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Here's the problem. Most think that when they go to a 2.5" pipe that they are just increasing pipe diameter by a small amount, but in actuality that's not the case. #1. The factory does not use mandrel bent pipes which means that in some areas the pipe diameter is actually reduced to about 1.5". You take the smallest diameter within the system, and that's basically your max flow. We've cut away some of the suspected factory bends, and got the measurement of 1.5". This is not to say that some will be bigger and some will be smaller, as they are not all the same, but that gives you an idea of how it works.

In most all out high performance cases, bigger is better, but you do need to understand that your g6 is not an all out racer. By that I mean, that it has a certain perameter that it needs to work within in order to pass emissions and offer you the drivability you expect from your daily driver. The other problem is, if you increase your hp in the higher rpms, you generally decrease your torque in the lower rpms, this is why it's important to control the back pressure. Hp is not what makes your car quicker, it's torque. The average G6 is a 3500 lbs. plus car, that is powered by a V6. V6's generally do not put out that much torque, so on a 3500 plus lbs. car, losing any amount of torque is really a bad idea. Having more hp in the un-usable rpms ends up cheating you big time, because you have lost the most important thing (torque) in the rpms you needed the most, which is down low. Torque is what you feel pushing you forward. I can explain how our exhaust corrects the issue even with mandrel bent 2.5" pipes, but I would be accused of trying to sell a system, which I am not. Those that want to know, just have to read what I have written in the past. For the OP, you can regain some (not all) of that lost torque by simply installing a smaller diameter pipe somewhere within your system.
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post #13 of 31 (permalink) Old 10-13-2010, 04:49 PM Thread Starter
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I did a custom exhaust system because every time I contacted or called about the GT-R I was put on hold and no one would answer the questions I wanted to know. Same goes for through email so I got fed up. Also, I live in MO and they wanted almost $800 (even when I had a $100 discount for being a member). Didn't find this fair at all. I paid less than $400 and I got the exact same muffler. Its a Magnaflow Camaro muffler and I got 3 1/2 tips. Only thing I didn't do was a full system. The stock resonator is still on because I was afraid of the sound. It sounds really good the way it is but maybe I should replace it with new piping..
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2007 G6 GT Sedan Ivory White w/ 3.5L V6 Fully Loaded

Performance Mods: CRAB's O3 w/ FPU, Custom Magnaflow Dual Exhaust w/ 3 1/2 Tips, Resonator Removed, Motor Mount Inserts

Appearance Mods: HIDs Head/Fog 35w 6000k, Front/Back/Eyebrow 5% Tint, Tinted License Plate Covers, Debadged Sides/Rear but kept GT, Added GT emblems to sides, Arrowhead Overlays BLACK for front/rear - CHROME for wheels

Handle Mods: Strut Bar & Tires

Audio Mods: 2 Alpine 12" E's & Alpine 1000W Class D Mono Amp

To Do List: Dyno/Tune, Exterior White Underglows, Interior Red Underglows, Front Mud/Snow Guards, ""Painted Mirrors; Calipers; Tail Lights; Grille Insert & Assembly (All WHITE)""
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post #14 of 31 (permalink) Old 10-13-2010, 04:56 PM
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Quote:
Originally Posted by dwhiteg6gt View Post
I did a custom exhaust system because every time I contacted or called about the GT-R I was put on hold and no one would answer the questions I wanted to know. Same goes for through email so I got fed up. Also, I live in MO and they wanted almost $800 (even when I had a $100 discount for being a member). Didn't find this fair at all. I paid less than $400 and I got the exact same muffler. Its a Magnaflow Camaro muffler and I got 3 1/2 tips. Only thing I didn't do was a full system. The stock resonator is still on because I was afraid of the sound. It sounds really good the way it is but maybe I should replace it with new piping..
That is way unfair man. Even our customers in Canada have never paid that much, and most of it is shipping cost plus Canadian customs fees. If you live in either coast average shipping is between $70-$95.00 how do you get $800.00 when the forum price is $599? I have even given members from this forum the same discount, so if they want to chime in please do.

Also, if you were to come to us and pick up the system there is no shipping or handling fees.

P.S we answer every email in a very timely manner, if you call but don't leave a message no one will call you back.

Last edited by GT-R; 10-13-2010 at 05:00 PM.
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post #15 of 31 (permalink) Old 10-13-2010, 05:02 PM Thread Starter
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Quote:
Originally Posted by GT-R View Post
That is way unfair man. Even our customers in Canada have never paid that much, and most of it is shipping cost plus Canadian customs fees. If you live in either coast average shipping is between $70-$95.00 how do you get $800.00 when the forum price is $599? I have even given members from this forum the same discount, so if they want to chime in please do.

Also, if you were to come to us and pick up the system there is no shipping or handling fees.
Sorry. I didn't mean to put $800. It was suppose to be $700. I wasn't happy with no responding e-mails and etc though. I asked simple basic questions as well of what kind of muffler it was. I kept getting response to it being a tuned muffler. I was told by many muffler shops you can't tune a muffler. But maybe its because they wanted my business. I wasn't willing to pay $700 for a bolt on system even though everyone said its a great system. And each video I listened to all sounded different due to their recording device. So I was on my own and did a custom job. I'm somewhat happy with it. I just don't see how my performance would be that bad because its almost the same set up.

2007 G6 GT Sedan Ivory White w/ 3.5L V6 Fully Loaded

Performance Mods: CRAB's O3 w/ FPU, Custom Magnaflow Dual Exhaust w/ 3 1/2 Tips, Resonator Removed, Motor Mount Inserts

Appearance Mods: HIDs Head/Fog 35w 6000k, Front/Back/Eyebrow 5% Tint, Tinted License Plate Covers, Debadged Sides/Rear but kept GT, Added GT emblems to sides, Arrowhead Overlays BLACK for front/rear - CHROME for wheels

Handle Mods: Strut Bar & Tires

Audio Mods: 2 Alpine 12" E's & Alpine 1000W Class D Mono Amp

To Do List: Dyno/Tune, Exterior White Underglows, Interior Red Underglows, Front Mud/Snow Guards, ""Painted Mirrors; Calipers; Tail Lights; Grille Insert & Assembly (All WHITE)""
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