Finally got my car up on a lift tonight to install my new exhaust setup. We deleted the mid-muffler and resonators and installed an X-pipe to two GXP axlebacks. The sound is definitely not terrible. It's a little high-pitched, but that's what you get when you have a V6, no low V8 rumble. It sounds fantastic on idle, revs good under full-throttle, absolutely ZERO drone and 1500-2500RPMs (55-75MPH or so).
I'll try and get a fly-by video up soon. I personally think it sounds a lot better driving than it does revving it to 4k RPMs while parked.
Thanks! Considering what I paid for those axlebacks I don't think I'll be getting rid of them in the near future. I've got a full set each of V6 and GT stockers though!
I don't really think it matters all that much. You'll hear guys talking about rubbing oil or drawing crayon on the pipes to see where it stop burning, or to look for the blued spot on the steel or whatever, but at the end of the day it's a little ~270HP V6 and it won't make much of a difference in terms of performance no matter where it's placed. I put it towards the rear of the car because I didn't have a choice, that's where it was on Corey's G8.
Actually the placement of the cross pipe can make a difference in power and torque or where it peaks at.
I don't remember which is which, but you place it closer to the exhaust manifold/headers to either increase HP or TQ and you move it farther away to do the other. I just can't remember which is which.
I do remember when I had the magna flow prototype exhaust, they put the X pipe up front near the tranny.
Fly-by Video: Sorry for the crappy/long Video. First fly-by in Drive with ESC engaged is at 1:00, second run is at 2:26 and is in Sport Mode with ESC off.
Yeah, definitely sounds better than stock as we've all found out on the 6s and GTs! I think it has a nice, refined sound to it. Not too obnoxious, but lets others know you're driving a sports sedan. Nice work!
Thanks everyone. I went with standard 2.25" piping.
@TLS: With ESC turned on, if the car senses even slight wheel slippage (not necessarily even full wheel spin) it will retard the ignition. I didn't think the tires would break loose anyway (low HP car + super-grippy Potenzas = not going to happen) but I didn't want to take the chance of having an embarrassing hard launch followed by a sharp drop in RPMs and thus a change in the exhaust note.
While the V6 does not match up to the GXP or GT horsepower wise, that does not change the passion owners have for their G8's.
Why not start our own registry as well, following much of the same layout.
My info:
Year: 2009
Colour: Panther Black Metallic
Options: Sunroof, Comfort and Sound...
Hello everyone! I have recently changed out my 3.6l engine for another used 3.6l. I have tested the battery, checked all the electrical connections. The starter tested good and the starter relay is good. The issue that I am having is it has a very weak crank if I'm lucky maybe one rotation and...
I currently have a v6 G8 that I'm trying to swap into a 5.3l. Is there any major differences between the v8 and v6 g8s that could make this swap more difficult ?
So last weekend I just had my overkill tune installed (thanks to a vary big help!!) and thought I would write a little review.
Right off the bat you can feel the throttle is more responsive the faster you push the more it goes. But at the same time it isn't enough sensitivity to hurt anything...
Hey fellas first time posting on here but I’m having some issues with my G8 in which the key is stuck in the ignition. Figured this could be the place to help figure it out before I take her into a dealer/shop.
Just bought the car a month ago and not entirely familiar with it yet.
Then being...
A community for Pontiac G8 owners and enthusiasts, for all the information on your Pontiac G8 sedan, G8 GT, G8 V6, and G8 GXP. Discuss performance, tech, engine specs, body kits and more!
