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Hardcore hot-rodders have known it for years-real power is really loud. And that's why hardcore hot-rodders use Magnaflow Glass Pack Mufflers. When maximum horsepower is more important than minimum sound, Magnaflow Glass Pack Mufflers deliver the hot-rod performance and classic roar you're looking for.
Crafted from CNC-welded aluminized steel, Magnaflow Glass Packs feature a small diameter shell that fits into the tightest spaces. The straight-through performance design reduces backpressure, letting the horsepower flow freely. And to deliver that sweet hot-rod rumble, Magnaflow packs 'em with rockwool (non-fiberglass) acoustic packing material.
Proudly made right here in the USA, Glass Pack Mufflers are crafted to the same high-quality standards that Magnaflow is famous for. And best yet, Magnaflow backs your Glass Pack Mufflers with a Lifetime Warranty.
30 Customer Reviews
Reviewed by Tim G (PORT ARTHUR, TX) Reviewed for a 2009 Chevy Silverado — Apr 24, 2014 9:29 PM
Installed on a 2009 Silverado 4.3l, turned down at rear axle. Sounds great, good low tone at idle and light throttle, opens up at moderate to full throttle and gets pretty loud. Sounds like a V6, not trying to make it sound like a V8, like a hear alot of comments referring to. Very pleased with overall experience; fast, free shipping, prices as good if not better than parts house, AutoAnything a pure pleasure to deal with!
Reviewed by Saul A (ROCKPORT, TX) — Apr 21, 2014 9:31 PM
i got to say for the price i paid for the muffler i am impressed. i put it on my del sol with a b16a swap, and it took out those high notes, and made it a lot more throaty. i was thinking at first i might change it out at a latter time, but after hearing it i think ill be keeping it!
Reviewed by David S (JULIAETTA, ID) Reviewed for a 1994 Toyota Pickup — Mar 17, 2014 8:58 PM
For what I paid I am totally impressed. It was pretty easy to install. And made my pickup sound a lot more throaty. Works great with the cold air intake and header pipes .Not to mention the speedy delivery.
Reviewed by Gary T (Clark, MO) Reviewed for a 2001 Ford Mustang — Feb 24, 2014 8:23 PM
I replaced my stock Ford Mustang GT mufflers with Magnaflow Glass Packs and the change is remarkable. I love the low rumble at idle and the dynamic rumble on acceleration. These are quality mufflers and they look great too. Great value from Autoanything and super fast delivery. I will continue to be a loyal customer of Autoanything.
Reviewed by Aaron M (JAMESTOWN, NY) Reviewed for a 2002 Chrysler Concorde — Jul 26, 2013 5:40 AM
It modified the sound that came out, but it didn't make it very noticeable unless you were to be outside of the car listening to the exhaust, it sounded cleaner but didn't raise the sound level, I overall liked the product. But be sure to check the sizes on your current muffler and be sure to get the matching sized new one or else it would host many problems