MRT 2.0 or Flowmaster American Thunder

jeffm5690 · 12-26-2018, 09:27 PM

I had the MRT 2.0 on my 2010. Was great with a little drone that crept up as time went by. I now have a 2018 and not sure if I want to go with the same OR the Flowmaster American Thunder.... both Axle back. Any thoughts? I want to pull the trigger soon before I change my mind.

Camarolover85 · 12-27-2018, 01:24 PM

+1 for the American thunder. Love mine. It’s got a great little idle and low rumble when just cruising along and a nice loud tone when you get on it. It’s never raspy or high pitched, compliments the car well. If anyone tells you it drones, they’ve never had it.

RxSummit16 · 12-27-2018, 02:06 PM

Totally agree with all of this..

Quote:

Originally Posted by Camarolover85

+1 for the American thunder. Love mine. It’s got a great little idle and low rumble when just cruising along and a nice loud tone when you get on it. It’s never raspy or high pitched, compliments the car well. If anyone tells you it drones, they’ve never had it.

6sigma · 12-27-2018, 05:21 PM

I have the American Thunder and really like it. Sounds aggressive, and loud above 5k rpm. I've never heard the MRT so can't comment.

chris227 · 12-28-2018, 05:16 AM

Quote:

Originally Posted by Camarolover85

+1 for the American thunder. Love mine. It’s got a great little idle and low rumble when just cruising along and a nice loud tone when you get on it. It’s never raspy or high pitched, compliments the car well. If anyone tells you it drones, they’ve never had it.

I bought the American Thunder the first week they were out and to say there is no drone is not true.

It's not headache inducing, but it's there around 2k to 3k RPMs.

Not everybody may be annoyed by it, but it is there.

To the OP...It does make a nice sound. I am very happy with the purchase.

JakeF_RS · 12-28-2018, 10:56 AM

Quote:

Originally Posted by chris227

I bought the American Thunder the first week they were out and to say there is no drone is not true.

It's not headache inducing, but it's there around 2k to 3k RPMs.

Not everybody may be annoyed by it, but it is there.

To the OP...It does make a nice sound. I am very happy with the purchase.

That’s why I’ve stuck with the Borla axlebacks, no drone at all. My last car droned like crazy so I’m avoiding that at all costs.

Camarolover85 · 12-28-2018, 01:09 PM

Quote:

Originally Posted by chris227

I bought the American Thunder the first week they were out and to say there is no drone is not true.

It's not headache inducing, but it's there around 2k to 3k RPMs.

Not everybody may be annoyed by it, but it is there.

To the OP...It does make a nice sound. I am very happy with the purchase.

Well then I don’t know what “drone” is because I can’t hear a thing.

kraut1971 · 12-28-2018, 08:14 PM

OP: Excellent thread! I had the MRT2's on my 2013. . . I totally loved the sound when I gave it the beans - especially through long underpasses or tunnels - but the highway drone could get old on long trips.

Just bought a 2016 and was hoping to find some options from the forum. This thread is gold as I haven't heard of the Flowmaster American Thunder, but it's obviously worth consideration! Has anyone got any YouTube videos of their modified exhaust systems available to check out?

Camarolover85 · 12-29-2018, 09:13 AM

Quote:

Originally Posted by kraut1971

OP: Excellent thread! I had the MRT2's on my 2013. . . I totally loved the sound when I gave it the beans - especially through long underpasses or tunnels - but the highway drone could get old on long trips.

Just bought a 2016 and was hoping to find some options from the forum. This thread is gold as I haven't heard of the Flowmaster American Thunder, but it's obviously worth consideration! Has anyone got any YouTube videos of their modified exhaust systems available to check out?

https://youtu.be/x4Ex17UM4Ik

Might be able to do a real video but that’s what it sounded like during idle after install.

chris227 · 12-29-2018, 11:46 AM

Quote:

Originally Posted by kraut1971

OP: Excellent thread! I had the MRT2's on my 2013. . . I totally loved the sound when I gave it the beans - especially through long underpasses or tunnels - but the highway drone could get old on long trips.

Just bought a 2016 and was hoping to find some options from the forum. This thread is gold as I haven't heard of the Flowmaster American Thunder, but it's obviously worth consideration! Has anyone got any YouTube videos of their modified exhaust systems available to check out?

This isn't the greatest at all, but it gives you a idea of cabin sound.

Accelerating onto the highway. (American Thunder axle back)

guapo · 12-29-2018, 11:57 AM

Quote:

Originally Posted by kraut1971

OP: Excellent thread! I had the MRT2's on my 2013. . . I totally loved the sound when I gave it the beans - especially through long underpasses or tunnels - but the highway drone could get old on long trips.

Just bought a 2016 and was hoping to find some options from the forum. This thread is gold as I haven't heard of the Flowmaster American Thunder, but it's obviously worth consideration! Has anyone got any YouTube videos of their modified exhaust systems available to check out?

I have SOLO full cat back on our 2013 and love it. I waiting to see what the cost of the quad system for the 2017 will be.

cellsafemode · 12-29-2018, 07:28 PM

I have an MRT V1. It drones but not during cruising speeds. So it's no problem at all to drive for hours and hours without being an issue (been on many long trips).

If you do most of your driving in residential sections where the speed limit is 25-30, then you will have problems. If you like to talk to people in your car while not cruising on the highway, you will have problems.

It does sound very nice though. If none of the above are an issue.

Chris g. · 01-22-2019, 12:16 PM

Quote:

Originally Posted by Camarolover85

+1 for the American thunder. Love mine. It’s got a great little idle and low rumble when just cruising along and a nice loud tone when you get on it. It’s never raspy or high pitched, compliments the car well. If anyone tells you it drones, they’ve never had it.

I agree 100% with this.

I installed the axle back American thunder two weeks after owning my 2018 RS and don't regret it. The cold starts just sound mean compared to stock not to mention when you get on it people definitely know you're coming..

Start The Machine · 01-22-2019, 01:16 PM

Neither. Get the Mishimoto Pro Cat-Back Exaust.

12-26-2018, 09:27 PM	#1
jeffm5690 Drives: 2023 2SS 1LE Join Date: Nov 2009 Location: NY Posts: 138 View My Garage	MRT 2.0 or Flowmaster American Thunder I had the MRT 2.0 on my 2010. Was great with a little drone that crept up as time went by. I now have a 2018 and not sure if I want to go with the same OR the Flowmaster American Thunder.... both Axle back. Any thoughts? I want to pull the trigger soon before I change my mind. __________________ 2018 2LT/RS Hyper Blue Cosmetics - Bow tie Front/Rear Dashcam (Blackvue) 2010 2LT/RS IBM K&N Aircharger MRT V2.0 Exhaust Trifecta Tune Soon to be added: Elite Catch Can Iceolater Vmaxx Ported TB Cosmetics - Rally Flags, Door Sillplates Electronics - Escort Hardwired

12-28-2018, 08:14 PM	#8
kraut1971 BITCHN Camaro Drives: SOLD! Back in the looking zone... Join Date: Feb 2015 Location: Saline, MI Posts: 248 View My Garage	OP: Excellent thread! I had the MRT2's on my 2013. . . I totally loved the sound when I gave it the beans - especially through long underpasses or tunnels - but the highway drone could get old on long trips. Just bought a 2016 and was hoping to find some options from the forum. This thread is gold as I haven't heard of the Flowmaster American Thunder, but it's obviously worth consideration! Has anyone got any YouTube videos of their modified exhaust systems available to check out? __________________ BITCHN

01-22-2019, 01:16 PM	#14
Start The Machine Drives: 2016 M6 2.0T Join Date: Nov 2016 Location: Gig Harbor, WA Posts: 839	Neither. Get the Mishimoto Pro Cat-Back Exaust. __________________ RS Package, HD Cooling Package, Brembo 6 Piston Front Brakes, SRP Racing Pedals, Soler Performance Throttle Controller, Dyno Tuned by Trifecta, Velossa Tech Ram Air, Mishimoto Intake, aFe Air Filter, Mishimoto Charge Pipes, ZZP 67mm Throttle Body, Trifecta T40 Stage 2 Turbo, JacFab Recirculation Valve, PTP Turbo Blanket, ZZP Catted Downpipe, Mishimoto Pro Cat-Back Quad Tip Exhaust, Mishimoto Catch Cans, Mishimoto Coolant Reservoir Tank, GM SEMA Grill, Ikon Motorsports Front Fascia Extension, Ikon Motorsports 1LE Spoiler, American Authority ZL1 Side Skirts, AMPP Quad Tip Rear Valance

12-27-2018, 01:24 PM	#2
Camarolover85 Account Suspended Drives: 2019 Dodge Challenger Scat Pack Join Date: Apr 2014 Location: Frederick, Colorado Posts: 1,245	+1 for the American thunder. Love mine. It’s got a great little idle and low rumble when just cruising along and a nice loud tone when you get on it. It’s never raspy or high pitched, compliments the car well. If anyone tells you it drones, they’ve never had it.

12-27-2018, 05:21 PM	#4
6sigma Drives: rally green LT1 manual Join Date: Jul 2018 Location: Indiana Posts: 282	I have the American Thunder and really like it. Sounds aggressive, and loud above 5k rpm. I've never heard the MRT so can't comment.

12-29-2018, 07:28 PM	#12
cellsafemode Drives: 2016 Camaro 1LT Join Date: Jan 2016 Location: California Posts: 3,491	I have an MRT V1. It drones but not during cruising speeds. So it's no problem at all to drive for hours and hours without being an issue (been on many long trips). If you do most of your driving in residential sections where the speed limit is 25-30, then you will have problems. If you like to talk to people in your car while not cruising on the highway, you will have problems. It does sound very nice though. If none of the above are an issue.

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