GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

Exhaust sound and AFM

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Old Feb 9, 2009 | 02:55 PM
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Default Exhaust sound and AFM

So this might be a dumb question but on the eve of me installing aftermarket (and obviously louder) exhaust on my vmax I thought... Will my truck sound like a tuner rice rocket(or just shifty in general) in 4 cylinder mode?q
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Old Feb 9, 2009 | 06:10 PM
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Originally Posted by SouthPaw17
So this might be a dumb question but on the eve of me installing aftermarket (and obviously louder) exhaust on my vmax I thought... Will my truck sound like a tuner rice rocket(or just shifty in general) in 4 cylinder mode?q
Not at all it sounds a little off but it still sounds like a v8!
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Old Feb 9, 2009 | 06:47 PM
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I couldn't stand how my truck sounded after installing louder exhaust with the DOD on. I went the next day and had it turned off. I think you will hate it.
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Old Feb 9, 2009 | 07:17 PM
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depends on which brand you use as well.
mine sounded ok with single 3" magnaflow catback, no big deal
but sounded terrible when headers added,
turned off dod then
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Old Feb 9, 2009 | 07:17 PM
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It just sounds a tad choppy, no big deal. But I have a longer magna flow to keep the sound down in 4 cyl mode.
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Old Feb 9, 2009 | 07:22 PM
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I also hated it...The drone really sucks! I turn it off around town and when I go on long trips I turn it back on, to save on fuel, but only if I remember...

my .02.............
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Old Feb 9, 2009 | 08:49 PM
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Sounds like cr*p. Disable AFM/DOD, and be happy.
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Old Feb 10, 2009 | 02:22 PM
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Mine barely comes on anymore with the lift and bigger tires.
When its on it just sounds like a slight misfire to me?
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