Need advice, Too loud

dmcmahan60 · 04-25-2024, 05:20 AM

Good morning all, just need some ideas from the Pro's. Just recently had Sppeed Engeneering headers and 3 in X pipe along with a tune put on my car. Love the added power but can't stand the noise levels now. I have AWE Touring axle back but it is just stupid loud for this old man.
I new it was going to be loud after removing all of the cats but holy S**t it is embarrassing to even drive it now. I was thinking of going back to the stock X Pipe and hope it does not kill the performance or interfere with the tune. I was kind of steered to the direction of the Speed Engineering setup because it was cheaper. I did not realize they do not make test pipes to hook to the original exhaust.
I can handle having resonators added to the stock X pipe because the 3 in xipe fits like A** and nothing lines up and one side is hanging lower than the other. My OCD is killing me at this point to where I don't even want to drive the car anymore. And to add to this the shop doing the work turned what should have been an easy upgrade into a 2 week nightmare of me having to call them out on several things that were done poorly. Sorry for the long rant, just need some ideas. Thanks.

KC64 · 04-25-2024, 06:00 AM

Sorry to hear that you are troubles. You get what you pay for. I do not know how you can be cat delete with today’s inspections. Put the cats on and get an axle back exhaust. That should fix your ear troubles? Good luck!

14Black1LESS · 04-25-2024, 06:05 AM

I have the same setup on my 5th Gen and love it but if you want something not as noisy, you might want to sell it and get a Corsa or Borla setup.

Quote:

Originally Posted by KC64

Sorry to hear that you are troubles. You get what you pay for. I do not know how you can be cat delete with today’s inspections. Put the cats on and get an axle back exhaust. That should fix your ear troubles? Good luck!

Not every state has inspections.

SomeGeoffGuy · 04-25-2024, 06:55 AM

Still got the stock muffler? That will probably help.

-Geoff

dmcmahan60 · 04-25-2024, 07:24 AM

Quote:

Originally Posted by SomeGeoffGuy

Still got the stock muffler? That will probably help.

-Geoff

I do not. Sold it a few years ago after I put the new AWE axle back on.

WhiteMale · 04-25-2024, 07:26 AM

Most people that go with headers, for that reason, retain the stock suitcase and NPP because it's just to loud.

WhiteMale · 04-25-2024, 07:32 AM

Quote:

Originally Posted by dmcmahan60

I do not. Sold it a few years ago after I put the new AWE axle back on.

a couple of bullet style resonators or glass packs in the midpipe seem to be the least of your options then. On another car that droned really bad, with mufflers, I used a classic Cherrybomb glasspack and that took care of it.

KingLT1 · 04-25-2024, 07:42 AM

3 options.

-Order the resonated X pipe section for your AWE Axle back...will help a bit but it's still going to be loud.

-High flow cats

-Find a used ZL1 muffler.

MT-SS1LE · 04-25-2024, 08:52 AM

Quote:

Originally Posted by dmcmahan60

I do not. Sold it a few years ago after I put the new AWE axle back on.

If you were closer you could have the one I just took off my car when I installed my Borla Atak axle back two weeks ago. I think your best (and cheapest) option is to find a stock suitcase muffler and have that welded in.

ctrlz · 04-25-2024, 08:53 AM

Quote:

Originally Posted by KC64

Put the cats back on...

Yeah, start here!

SOCAL.M6.ZLE · 04-25-2024, 09:19 AM

I was in the same boat... except I still had the AR HF cats... At that time, I added a small Magnaflow Center X Muffler in the tunnel... made the car sound 100% better. Much deeper tone, still sounds wicked at WOT, no drone.

Since then, gutted my cats as they were failing, not in love with the noise level and tone, so I ordered the 4.5" GESI cats to quiet things down. Not trying to attract that kind of attention.

Hope this helps.

dmcmahan60 · 04-25-2024, 10:57 AM

Thanks for the input all. My friend still has his stock suitcase and I am going back with the stock xpipe because the fitment of the 3 inch xpipe is shat:(

Rekkless · 04-26-2024, 10:27 PM

The only advice I have is the Corsa NPP is exhaust is incredible. It's very loud with the valves open when you're pushing it and very quiet when the valves are closed and just putting around town. I got this catback specifically because I wanted to go with catless headers.

dmcmahan60 · 04-29-2024, 05:24 AM

Update, I removed the Speed Engineering 3 inch x pipe and put the stock x pipe with the scondary cats on it. Made a huge different and I can tolerate it at this point. will stll add some resonators where the crush part is and go from there. Oh yeah and I kept hearing a rattling sound all the time. So where the muffler shop owner took of the crap x pipe he found 2 header bolts lodged near the collector on the drivers side where all 4 of them come together!@#$%$#@!

04-25-2024, 05:20 AM	#1
dmcmahan60 Drives: 2017 SS Join Date: Jan 2018 Location: Arab, AL Posts: 768 View My Garage	Need advice, Too loud Good morning all, just need some ideas from the Pro's. Just recently had Sppeed Engeneering headers and 3 in X pipe along with a tune put on my car. Love the added power but can't stand the noise levels now. I have AWE Touring axle back but it is just stupid loud for this old man. I new it was going to be loud after removing all of the cats but holy St it is embarrassing to even drive it now. I was thinking of going back to the stock X Pipe and hope it does not kill the performance or interfere with the tune. I was kind of steered to the direction of the Speed Engineering setup because it was cheaper. I did not realize they do not make test pipes to hook to the original exhaust. I can handle having resonators added to the stock X pipe because the 3 in xipe fits like A and nothing lines up and one side is hanging lower than the other. My OCD is killing me at this point to where I don't even want to drive the car anymore. And to add to this the shop doing the work turned what should have been an easy upgrade into a 2 week nightmare of me having to call them out on several things that were done poorly. Sorry for the long rant, just need some ideas. Thanks.

04-25-2024, 06:55 AM	#4
SomeGeoffGuy Drives: 2023 2SS Convertible Join Date: May 2009 Location: Metro Detroit Posts: 1,065	Still got the stock muffler? That will probably help. -Geoff __________________ '12 2SS RS Convertible - Traded in. '16 2SS Convertible - White on white, mag-ride, NPP, nav. Sold! '23 2SS Convertible -Same as above except orange.

04-25-2024, 07:42 AM	#8
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,806	3 options. -Order the resonated X pipe section for your AWE Axle back...will help a bit but it's still going to be loud. -High flow cats -Find a used ZL1 muffler. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

04-25-2024, 09:19 AM	#11
SOCAL.M6.ZLE Having FUN in the SUN... Drives: 2022 M6 ZL1 1LE Join Date: Jan 2022 Location: San Diego CA Posts: 1,057	I was in the same boat... except I still had the AR HF cats... At that time, I added a small Magnaflow Center X Muffler in the tunnel... made the car sound 100% better. Much deeper tone, still sounds wicked at WOT, no drone. Since then, gutted my cats as they were failing, not in love with the noise level and tone, so I ordered the 4.5" GESI cats to quiet things down. Not trying to attract that kind of attention. Hope this helps. Attached Images __________________ 2022 M6 ZLE: Katech CNC Ported Blower + Ported Heads + 103mm TB + Oil Pump + C5R Chain + Valve Covers + Coil Relocation TSP VVT and DoD Delete Covers + LME Chain Guide + DSX Billet Lid + ATI Damper + 9.17" Lower + 2.4" Upper + MM Wild CC Coated ARH + AWE Touring + Magnaflow Center X + E85 + MSD Coils + Banks iDash + JMS Booster + Synergy Fender Tank ALL the RED Rear End BMR Goodies + JRE Terminator Cam Package + Remote Tuning and Moral Support from TED @ JRE BMR Motor Mounts + DMS Front HX + FIC 30's + APEX SM.10's + 305/345 R888R's = 770rwhp 785rwtq @E50 13.5psi

04-25-2024, 10:57 AM	#12
dmcmahan60 Drives: 2017 SS Join Date: Jan 2018 Location: Arab, AL Posts: 768 View My Garage	Thanks for the input all. My friend still has his stock suitcase and I am going back with the stock xpipe because the fitment of the 3 inch xpipe is shat:( Last edited by dmcmahan60; 04-25-2024 at 11:30 AM.

04-25-2024, 06:00 AM	#2
KC64 Gray Ghost Drives: 24 Camaro 2SS Loaded Join Date: Feb 2024 Location: SE Texas Posts: 88	Sorry to hear that you are troubles. You get what you pay for. I do not know how you can be cat delete with today’s inspections. Put the cats on and get an axle back exhaust. That should fix your ear troubles? Good luck!

04-25-2024, 07:26 AM	#6
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,997	Most people that go with headers, for that reason, retain the stock suitcase and NPP because it's just to loud.

04-26-2024, 10:27 PM	#13
Rekkless Drives: Carmaro SS 1LE Join Date: Dec 2019 Location: Montreal, Canada Posts: 27	The only advice I have is the Corsa NPP is exhaust is incredible. It's very loud with the valves open when you're pushing it and very quiet when the valves are closed and just putting around town. I got this catback specifically because I wanted to go with catless headers.

04-29-2024, 05:24 AM	#14
dmcmahan60 Drives: 2017 SS Join Date: Jan 2018 Location: Arab, AL Posts: 768 View My Garage	Update, I removed the Speed Engineering 3 inch x pipe and put the stock x pipe with the scondary cats on it. Made a huge different and I can tolerate it at this point. will stll add some resonators where the crush part is and go from there. Oh yeah and I kept hearing a rattling sound all the time. So where the muffler shop owner took of the crap x pipe he found 2 header bolts lodged near the collector on the drivers side where all 4 of them come together!@#$%$#@!

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