Which G8 Axleback?
12-30-2010, 01:53 PM
#1
Which G8 Axleback? Currently on the car I have a full Kooks system and the axle back is just too loud. I don't think sound deadening will help me. In the intermediate time I plan on reinstalling the factory GXP mufflers and getting rid of the Kooks axle back.
I wish to have an axle back on my car that would not be louder than the Hooker Aerochamber I had on my Camaro. A chambered muffler is def a requirement here.
I wish to have an axle back on my car that would not be louder than the Hooker Aerochamber I had on my Camaro. A chambered muffler is def a requirement here.
12-30-2010, 03:13 PM
#2
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i am soon gonna get before and after dyno numbers on the dynomax VT mufflers i had a little cash issue with it being the holidays lol i spend all my money on my kids nov dec but its soon jan and i'll be getting everything fabed up for quick chang on the dyno (hourly rate) and will have some dyno numbers and if i can get it to work a video clip of the sound it makes
12-31-2010, 02:23 PM
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I have Kooks LT headers and x-pipe with SLP powerflow mufflers. They sound nice and deep but are not very loud and do not drone at all. I had GXP mufflers before and they were too raspy for me. I also had Borla mufflers and they were way to loud with horrible drone.
12-31-2010, 04:36 PM
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What's wrong with the stock GXP mufflers? From what Patrick G (my tuner) told me, the stock GXP mufflers only cost a couple of rwhp. My exhaust, even with 1 7/8 ARH, through hi flow cats, a mid muffler (magnaflow 12468) , and stock GXP mufflers even passed the mother in law test. 
My car is very quite, until the go pedal is stomped on, then it gets LOUD!
I have vid with sound clip if you want to hear it.
My car is very quite, until the go pedal is stomped on, then it gets LOUD!
I have vid with sound clip if you want to hear it.
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12-31-2010, 05:31 PM
#8
What's wrong with the stock GXP mufflers? From what Patrick G (my tuner) told me, the stock GXP mufflers only cost a couple of rwhp. My exhaust, even with 1 7/8 ARH, through hi flow cats, a mid muffler (magnaflow 12468) , and stock GXP mufflers even passed the mother in law test.
My car is very quite, until the go pedal is stomped on, then it gets LOUD!
I have vid with sound clip if you want to hear it.
My car is very quite, until the go pedal is stomped on, then it gets LOUD!
I have vid with sound clip if you want to hear it.
The stock muffs are 25 lbs a piece.
The Kooks were 10.5 lbs a piece.
The stock mufflers with the Kooks system does sound good but I want a tad bit more sound. The Kooks sounded awesome but just way way too loud on the highway and going up long hills it got annoying.
12-31-2010, 07:55 PM
#9
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I too would like a bit more sound. Let me pm this thread to Patrick G and see if he can add some input.
01-01-2011, 12:35 PM
#11
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You can go with a Magnaflow axelback. I had one on my GT for awhile but it was a little to quiet for my taste. But I was running manifolds and not long tubes. They were louder then stock, sounded good with no drone. Check em out. http://juicedmotorsports.com/G8EXHAUST.html
01-01-2011, 04:46 PM
#12
I've had Magnaflows for over a year now and I hate them! The drone at 70 mph or roughly 1800 to 2000 RPMS is just terrible. I will be switching to Solo's as soon as I get some things taken care of. My Firehawk which makes over 700 RWHP and has a custom exhaust is less irritating.
01-01-2011, 07:42 PM
#13
You can go with a Magnaflow axelback. I had one on my GT for awhile but it was a little to quiet for my taste. But I was running manifolds and not long tubes. They were louder then stock, sounded good with no drone. Check em out. http://juicedmotorsports.com/G8EXHAUST.html
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
01-02-2011, 10:53 AM
#16
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Man, I don't know why Patrick_G chose not to mention the exhaust solution he came up with months ago. Maybe it's because you ask about an axle back. PG has long tubes and slapped on a Magnaflow 12468 mid muffler and Cherry Bomb Vortex mufflers. I've been in the car and it sounds great. It's not loud in my opinion and doesn't drone.Here's a clip of it sitting still. I know this vid has nothing to do with drone, but it's still sexy and gives you a general idea of how loud it is.
