Nice work fellas. I respect the effort it took to make this video and I enjoyed the enthusiasm. However, my comment is as follows: The designers of the OEM muffler were not incompetent. The entire point of the suitcase style muffler is to smooth airflow underneath the car as it exits from front to rear. When you remove the suitcase muffler in place of straight pipe or standard style mufflers, you are disrupting airflow and will lose speed on the top end despite any power gain. This has been verified by GM and I also have verified on my end with lap data from my track events. I know from race track experience and I've used both the suitcase muffler as well as a straight piped setup. The handful of horsepower you pick up by removing airflow restriction is negated by losing actual speed because of the parachute at the back of the car which ruins the aero profile of the car. The real power is made at the headers. By going from the OEM shorty headers to long tubes, you will pick up as much as 40hp with a tune and as much as 15-20 with no other changes. The headers are the real restriction. Removing cats will pick up 5hp and removing the suitcase may offer another 5 or so. In the case of this video, 17hp seems a bit high but it's not impossible. You won't feel that while driving but the car will indeed sound nicer. You will however, FEEL the difference with long tubes. If you're driving in a State where your exhaust must be unmodified, you're better off getting Long Tube Headers with racing cats while keeping the stock suitcase muffler. You'll pick up the 40 or so horsepower while retaining the use of your NPP valves. You'll also have cats (remove the secondaries) and will have more of a shot passing emissions inspection. All of this while not disrupting the aerodynamics of the car.

Nothing sounds better than a corse exhaust 🤘

Can’t wait wishing everyone the best of luck on the giveaway

I May Be Old School, But I've Allways Liked The Sound Of FLOWMASTER!!

Good quality video. Keep it up.

Such an amazing video

Shouldn’t the flow meter be on the exit of the muffler to see the flow exiting rather than going in? To me the physics of the expansion chamber on the bigger muffler would allow more air to flow into it but not flow out as the outlets are all the same size. Just my thinking.

Few days late BUT LETS GOOOO

This is the one 🎉🔥🙌🏾

Love❤

babe, wake up. new freedom street garage zl1 magnaflow exhaust vid just dropped

🙏🙏

Please 🙏🏼💙

my car 🥲

I had magnaflow on my 2ss 1LE 18 comp mufflers way to loud and alot of drone ! Wish they made a little quieter muffler .

Front wheel drive?