What would it take to sound like this?

ChicagoTommy · 09-01-2017, 03:26 AM

Appears to be a newer CLA45 AMG. Merc really has the exhaust sound figured out on their 2.0t! Sounds like someone is snapping a baseball bat on upshifts, and downshifts sound completely amazeballs.

https://youtu.be/HwIhotj2cWc

whiskeyfed · 09-01-2017, 10:17 AM

Holy smokes... Sounds almost like a catless, straight pipe with a muffler delete but the sound is being tuned somehow to make sex in my earholes.

Ashium · 09-01-2017, 11:06 AM

Like I've said before the stock SRT4's sound pretty dam good and they pretty much just had cats and resonators. Someone should try adding a resonator or 2.

Jason@JacFab · 09-01-2017, 05:26 PM

for fun... Lets look at the differences we know about the M133, and the LTG

Bore / Stroke
LTG= 86mm / 86mm
M133 = 83mm / 92mm

Could the longer stroke have something to do with the sound?

Compression ratio
LTG = 9.5:1
M133 = 8.6:1

Max engine speed:
LTG = 7000
M133 = 6700

Both have a twin scroll turbo, the M133 sees about 26psi of boost stock, the LTG typically 18-20

the amg his a similar looking suitcase muffler to the Camaro and ATS, but it's about 50% smaller looking. The exhaust has some sort of magical flap that varies in position with throttle position and engine load (*cough* variable back pressure down pipe sound familiar? *cough*)... Looks to have just a single 12" or so bullet resonator under about the drivers seat.

Can't find anything that tells me the firing order, to see if its any different, cam specs or anything else... I read an article that says it cuts injection and ignition during hard upshifts to give it that sound.

Great sound! Would be nice.

b0bsaget007 · 09-02-2017, 11:01 AM

This CLA45 is indeed modified. The parts list is in the description of the video. Intake, catless dp, exhaust system (probably without mufflers) are the main noise makers.

SoCalThug · 09-02-2017, 01:45 PM

Quote:

Originally Posted by b0bsaget007

This CLA45 is indeed modified. The parts list is in the description of the video. Intake, catless dp, exhaust system (probably without mufflers) are the main noise makers.

i think the mod list are the mods for his wrx not the cla. the cla does sound modded though

ChicagoTommy · 09-03-2017, 02:31 PM

Yeah, it looks like the mod list is for this guy's WRX.

Jason, I was thinking along the same lines as you. I'd bet that the right cam specs could make it happen.

I'd love to get my hands on a stock tune file for a CLA45. Just to see how they are getting the upshift crack.

DatsunBob · 09-03-2017, 09:13 PM

Sounds like some sort of ignition cut

vaspen · 09-11-2017, 05:22 PM

yall notice how much faster that downrevs than our cars ? j.s .... that may be why it has that pop but that exhaust isn't stock it you look at the beginning

Start The Machine · 09-11-2017, 06:03 PM

That's what 400 + HP sounds like being squeezed out of a 2.0

ChicagoTommy · 09-11-2017, 11:58 PM

Ugh, between this and the 2.5 turbo in the 718 Porsche, so many good sounding 4 cylinders!

PhantomATS · 09-14-2017, 05:49 PM

Bleh, I like the sound of the ZZP Stage 1 Kit and Borla exhaust more ;-)

https://youtu.be/vAhnL-8rFvI

dekes1 · 09-18-2017, 11:54 AM

I'm so glad to read you guys sharing the same desire. Personally, I see too many guys chasing the Honda fart-can sound which is just terrible. The controlled, deeper, muffled-but-not-silent sound, plus the perfect burble and pop during shifts is the stuff 4cylinder legends are made of.
Cut-outs?-for drag racing yes, everywhere else no!
No cats, no muffler, and straight pipe? - for drag racing yes, everywhere else no!
Louder does not mean cooler.

Take a look on YouTube for one of Matt Farrah's OneTake shows where he drives the GLA45 AMG with mods. Slightly loud, but damn near perfect 4cyl sound.

Jason@JacFab · 09-18-2017, 09:36 PM

Quote:

Originally Posted by Start The Machine

That's what 400 + HP sounds like being squeezed out of a 2.0

Yeah, I've read several times, with increased HP comes the sound, from people trying to deter others from just sound mods like mufflers/deletes/etc.

I bet if someone had a 400+ hp LTG it might sound a lot different than these bolt on specials.

Sent from my iPhone using Tapatalk

09-01-2017, 03:26 AM	#1
ChicagoTommy Drives: 2017 Camaro; 2017 Acadia Denali Join Date: Jun 2016 Location: Chicago, IL/Williams Bay WI Posts: 1,022	What would it take to sound like this? Appears to be a newer CLA45 AMG. Merc really has the exhaust sound figured out on their 2.0t! Sounds like someone is snapping a baseball bat on upshifts, and downshifts sound completely amazeballs. https://youtu.be/HwIhotj2cWc

09-01-2017, 10:17 AM	#2
whiskeyfed Pat Drives: 2017 Camaro 1LT I4 Turbo A8 Join Date: Nov 2016 Location: Stratford, CT Posts: 827 View My Garage	Holy smokes... Sounds almost like a catless, straight pipe with a muffler delete but the sound is being tuned somehow to make sex in my earholes. __________________ Follow me on Instagram @whiskeyfed Subscribe on YouTube Whiskeyfed Camaro Follow my Build Thread The WhiskeyFed Camaro Current Modifications: JacFab Boost-O-Lator, Injen Evolution CAI, ZZP Catless Downpipe, RPM 3" Charge Pipe, Mishimoto Oil Filtration/Coolant Systems, R1 Concepts Brakes Package, Eibach Pro-Kit Lowering Springs, PTP Lava Exhaust Wrap & Turbo Blanket DYNO SHEET: 297whp / 374wtq Tuned by #danytechtuning

09-02-2017, 11:01 AM	#5
b0bsaget007 Drives: 2016 2LT RS Blue Velvet Join Date: Dec 2016 Location: Central FL Posts: 145	This CLA45 is indeed modified. The parts list is in the description of the video. Intake, catless dp, exhaust system (probably without mufflers) are the main noise makers. __________________ PC: i5-6600; RX 480 4GB; 16GB DDR4; Samsung 950 PRO 512GB SSD Car: 2016 Camaro 2LT RS 2.0T 6M Blue Velvet Metallic \| ZZP Hi-Flow Catted Downpipe \| Injen EVO7300 Cold Air Intake

09-11-2017, 06:03 PM	#10
Start The Machine Drives: 2016 M6 2.0T Join Date: Nov 2016 Location: Gig Harbor, WA Posts: 843	That's what 400 + HP sounds like being squeezed out of a 2.0 __________________ 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

09-01-2017, 11:06 AM	#3
Ashium Drives: Camaro 2.0t, 300zx TT, LSTT Mustang Join Date: May 2016 Location: Miami Fl Posts: 109	Like I've said before the stock SRT4's sound pretty dam good and they pretty much just had cats and resonators. Someone should try adding a resonator or 2.

09-01-2017, 05:26 PM	#4
Jason@JacFab Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008 Location: Central Point, OR Posts: 5,688 View My Garage	for fun... Lets look at the differences we know about the M133, and the LTG Bore / Stroke LTG= 86mm / 86mm M133 = 83mm / 92mm Could the longer stroke have something to do with the sound? Compression ratio LTG = 9.5:1 M133 = 8.6:1 Max engine speed: LTG = 7000 M133 = 6700 Both have a twin scroll turbo, the M133 sees about 26psi of boost stock, the LTG typically 18-20 the amg his a similar looking suitcase muffler to the Camaro and ATS, but it's about 50% smaller looking. The exhaust has some sort of magical flap that varies in position with throttle position and engine load (cough variable back pressure down pipe sound familiar? cough)... Looks to have just a single 12" or so bullet resonator under about the drivers seat. Can't find anything that tells me the firing order, to see if its any different, cam specs or anything else... I read an article that says it cuts injection and ignition during hard upshifts to give it that sound. Great sound! Would be nice.

09-03-2017, 02:31 PM	#7
ChicagoTommy Drives: 2017 Camaro; 2017 Acadia Denali Join Date: Jun 2016 Location: Chicago, IL/Williams Bay WI Posts: 1,022	Yeah, it looks like the mod list is for this guy's WRX. Jason, I was thinking along the same lines as you. I'd bet that the right cam specs could make it happen. I'd love to get my hands on a stock tune file for a CLA45. Just to see how they are getting the upshift crack.

09-03-2017, 09:13 PM	#8
DatsunBob Drives: ATS 2.0t Rwd Performance Join Date: Jun 2017 Location: Socal Posts: 24	Sounds like some sort of ignition cut

09-11-2017, 05:22 PM	#9
vaspen Drives: 2017 l4 blue 6speed Join Date: Oct 2016 Location: p.a Posts: 199	yall notice how much faster that downrevs than our cars ? j.s .... that may be why it has that pop but that exhaust isn't stock it you look at the beginning

09-11-2017, 11:58 PM	#11
ChicagoTommy Drives: 2017 Camaro; 2017 Acadia Denali Join Date: Jun 2016 Location: Chicago, IL/Williams Bay WI Posts: 1,022	Ugh, between this and the 2.5 turbo in the 718 Porsche, so many good sounding 4 cylinders!

09-14-2017, 05:49 PM	#12
PhantomATS Drives: 2014 Cadillac ATS 2.0T Join Date: Sep 2017 Location: NY Posts: 1	Bleh, I like the sound of the ZZP Stage 1 Kit and Borla exhaust more ;-) https://youtu.be/vAhnL-8rFvI

09-18-2017, 11:54 AM	#13
dekes1 Drives: Camaro like Join Date: Jun 2017 Location: Ohio Posts: 96	I'm so glad to read you guys sharing the same desire. Personally, I see too many guys chasing the Honda fart-can sound which is just terrible. The controlled, deeper, muffled-but-not-silent sound, plus the perfect burble and pop during shifts is the stuff 4cylinder legends are made of. Cut-outs?-for drag racing yes, everywhere else no! No cats, no muffler, and straight pipe? - for drag racing yes, everywhere else no! Louder does not mean cooler. Take a look on YouTube for one of Matt Farrah's OneTake shows where he drives the GLA45 AMG with mods. Slightly loud, but damn near perfect 4cyl sound.

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