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If you're revving all the time though because of that sweet new growl, expect to not gain any mileage difference
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Sounds stock while you are driving normally, but lets out a nice growl under medium to heavy throttle
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Gives a reasonable growl, but not enough to disturb you in the cabin.
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but I love the growl when getting on it
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It gives a nice growl if you want that deep sport sound than upgrading exhaust/ muffler
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Provides a nice growl at certain rpm ranges, looks great, and increased throttle response
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The engine now has a nice, deep growl to it, and the MPG has crept up about 1 MPG, so I do notice the difference.
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However the growling sound inside the cab was unexpected and acceptable.
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Love the growl it added
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no sound difference on start up, idling, or parked reving, but it has a growl during the acceleration on the street and I like it.
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Adds a nice growl when you step on the gas but sounds completely stock when cruising around
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and I get a nice growl under hood when I hit the gas
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The increse in mpg would probably be higher but the "growl" the engine makes on acceleration makes it tough not to step on the gas pedal more
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The engine now has a nice, deep growl to it, and the MPG has crept up about 1 MPG, so I do notice the difference.
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But the added deep growl is definitely worth it to me
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Really satisfied with the ease of installation, the extra growl it gives my truck, and the noticeable acceleration response.
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1) Love the way my 5.3 growls now.2
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and It does give a nice little growl when accelerating
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Has a good little growl under the hood now.
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Love the growl and look
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Much better accelerator response and engine has a nice growl when you get on it
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Huge difference in throttle response and love the growl it adds under half to full throttle.
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Gives a reasonable growl, but not enough to disturb you in the cabin.
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It's added a really nice growl to the V8 in the
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Awesome extra horsepower and growl
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I love the deep growl you hear when you step in to it now
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Once installed it added a deep growl to the engine when you got stepped on it , but completely quiet at cruising speed
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Its sounds good, it has a deep growl when accelerating from it pulling all that air in.
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Give the truck a nice little growl too.
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Can't say you will notice an increase in gas mileage because you won't be able to keep your foot off the pedal for the angry "GROWL" sound you will hear from under the hood
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Has a nice growl on my '18 Chevy
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Increases engine noise to a nice subtle growl under load/acceleration
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But this has a very clean growl when you hit around 3000rpms: exactly what I was hoping for
