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Yet another "too loud with Longtubes" Thread. MACH1 Specific

junits15

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And just like that, Wengerd comes through with a revised tune to adjust the valve positions. amazing. I will try it out and report back. @junits15
Wow! fast service! I hope it works for you, I love simple fixes
 

Nitrofish

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For whatever it’s worth the vibrant resonators worked well for me have arh catless going into corsa extreme double h pipe active. the sound wasn’t great raspy wall of sound like a v8 civic if that’s possible. After the resonators it knocked a few decibels and cleaned up the whole sound much deeper got back the muscle car sound.I ended up chopping the second h pipe and added them in line there. They won’t do a whole lot for sound just clean it up car still sounds like a nascar coming through but such a sick sound now.
 

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jayhoogs

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I guess it’s because I’m young, but I have long tubes (catted) and an H-pipe resonator delete with the stock active exhaust and absolutely love the sound. Before the headers I used to always drive in track, and even after them I was convinced I’d still want as much sound as possible. I will admit track is a bit much for daily driving, so now it lives in normal most of the time, although I still use sport and even track at times.
 
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SheepDog

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I guess it’s because I’m young, but I have long tubes (catted) and an H-pipe resonator delete with the stock active exhaust and absolutely love the sound. Before the headers I used to always drive in track, and even after them I was convinced I’d still want as much sound as possible. I will admit track is a bit much for daily driving, so now it lives in normal most of the time, although I still use sport and even track at times.
For me, the stock MACH1 sound was totally perfect. Now im just trying to get back to that, while still maintaining the flow and ease of cat inspection/changes of the long tubes.

I think the supercharger/FI is what sends it over the edge noise wise. All the extra air in and out really changes the sound from NA
 

jayhoogs

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For me, the stock MACH1 sound was totally perfect. Now im just trying to get back to that, while still maintaining the flow and ease of cat inspection/changes of the long tubes.
I agree, and I would’ve been 100% fine leaving the exhaust stock if I were required to. But I guess I also just like being able to hear it more and since I had the opportunity to make changes I did. But I also understand why for some people it may just be too loud, not everyone likes the same things. Not sure if how close to stock sound you’ll really be able to get if you’re keeping the long tubes on, or if that’s even possible, but I’m curious to see if you find a solution!
 
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SheepDog

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I agree, and I would’ve been 100% fine leaving the exhaust stock if I were required to. But I guess I also just like being able to hear it more and since I had the opportunity to make changes I did. But I also understand why for some people it may just be too loud, not everyone likes the same things. Not sure if how close to stock sound you’ll really be able to get if you’re keeping the long tubes on, or if that’s even possible, but I’m curious to see if you find a solution!
I had done my long tubes before the ESS blower, and it did sound great then, but the increased amount of exhaust gases with the blower I think is more than the OEM cat back can handle. And, Im old
 

shogun32

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I have a couple of new 2.5" in/outlet Borla/FP resonators if you're looking for that "3rd option" per the earlier posted YT. Really what you should do is have the exhaust shop cut the resonator and exhaust canisters open, examine the arrangement of (perf) tube, and wrap exhaust baffle mat around various pieces and weld the cover back on.
 

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NJMike

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Im old when its convenient or so Im told. :crackup: I have a Whipple, Kooks LTH w/green cats and everything else in the exhaust stock. I love the sound! I get that it to each their own.
Having said that, my Jeep has no active exhaust and man did I order the wrong cat back for the Kooks LTHs w/green cats. Solo exhaust - basically straight pipes. I need resonators there.

If you decide resonators, please post before & after
 

shogun32

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@Mikepol2 has a modified H-pipe with an inline resonator. You can probably pry it out of his grasp.
I personally despise rasp.
 
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SheepDog

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Im old when its convenient or so Im told. I have a Whipple, Kooks LTH w/green cats and everything else in the exhaust stock. I love the sound! I get that it to each their own.
Having said that, my Jeep has no active exhaust and man did I order the wrong cat back for the Kooks LTHs w/green cats. Solo exhaust - basically straight pipes. I need resonators there.

If you decide resonators, please post before & after
Will do. First Im going to try out my revised tune from Wengerd. Then I may go with the Accelatec resonated X Pipe, Although I do like @shogun32 idea of opening the OEM resonator/Mufflers and addign exhaust matting
 

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