Quieting down LM1 Exhaust, Auger Muffler Insert
06-25-2011, 09:17 AM
#1
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Quieting down LM1 Exhaust, Auger Muffler Insert Alright, I know there has been numerous threads on this topic, and I have read borlamouths, magnamouths, dynomouths.
Current setup, Longtubes, ORY, and LM1 catback. Those that know, this combo is LOUD and the rasp is outrageous.
Im thinking of going with a auger-muffler insert, which slides inside a 3inch pipe.
This here: http://www.summitracing.com/parts/PTE-H3844/
Only $14.99 and essentially the same design as a Moroso Spiral Flow.
Now, you believe this alone will help the rasp/noise a bit? Can I put it in before the LM1 Resonator and leave the LM1 Resonator in place, or does this defeat the purpose?
Not trying to spend much money, figure this is a good idea, any input?
Current setup, Longtubes, ORY, and LM1 catback. Those that know, this combo is LOUD and the rasp is outrageous.
Im thinking of going with a auger-muffler insert, which slides inside a 3inch pipe.
This here: http://www.summitracing.com/parts/PTE-H3844/
Only $14.99 and essentially the same design as a Moroso Spiral Flow.
Now, you believe this alone will help the rasp/noise a bit? Can I put it in before the LM1 Resonator and leave the LM1 Resonator in place, or does this defeat the purpose?
Not trying to spend much money, figure this is a good idea, any input?
06-25-2011, 10:36 AM
#2
Only thing that will do is cause a drop in performance, but the rasp will still be there...
The volume will drop slightly, but not enough to get you to the point you can enjoy it.
Honestly, pickup the Borla XR-1 3" muffler and replace the resonator. You won't loose much ground clearence if done right and ALL the rasp will be gone. You will have the same performance and it still gets loud as hell at WOT up top.
For a "loud" setup the LM1 with a Borla XR-1 muffler is my favorite setup... gotta love the flames out the back @ WOT!
The volume will drop slightly, but not enough to get you to the point you can enjoy it.
Honestly, pickup the Borla XR-1 3" muffler and replace the resonator. You won't loose much ground clearence if done right and ALL the rasp will be gone. You will have the same performance and it still gets loud as hell at WOT up top.
For a "loud" setup the LM1 with a Borla XR-1 muffler is my favorite setup... gotta love the flames out the back @ WOT!
06-25-2011, 12:30 PM
#6
Do you have any links to dynos or anything?
Dont take this the wrong way I'm not trying to start a fight or doubting you, that's just crazy and I'd like some more info. I know alot of people that say they are the greatest and I never really bought into it.
06-25-2011, 04:02 PM
#7
Really, where did you hear that?
Do you have any links to dynos or anything?
Dont take this the wrong way I'm not trying to start a fight or doubting you, that's just crazy and I'd like some more info. I know alot of people that say they are the greatest and I never really bought into it.
Do you have any links to dynos or anything?
Dont take this the wrong way I'm not trying to start a fight or doubting you, that's just crazy and I'd like some more info. I know alot of people that say they are the greatest and I never really bought into it.
To the OP. I have heard of guys putting two bullet mufflers in the tail pipe and leaving the resonator in the I pipe with great results. I think SLP actually sells some mufflers made to fit there.
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06-25-2011, 04:16 PM
#8
Yeah, I figured out two more XR-1 mufflers could be made to fit after the Y-section in the back...
That was my long-term solution on the LM1, a Borla XR1 in the resonator location, then a couple more after the y-section... Will still get loud up top at WOT, but cruising and in the midrange it would be quite manageable...
That was my long-term solution on the LM1, a Borla XR1 in the resonator location, then a couple more after the y-section... Will still get loud up top at WOT, but cruising and in the midrange it would be quite manageable...
06-25-2011, 08:02 PM
#9
There was a thread somewhere on here where people were making huge gains when taking out their spiral flow mufflers. These however were very high horsepower cars.
To the OP. I have heard of guys putting two bullet mufflers in the tail pipe and leaving the resonator in the I pipe with great results. I think SLP actually sells some mufflers made to fit there.
To the OP. I have heard of guys putting two bullet mufflers in the tail pipe and leaving the resonator in the I pipe with great results. I think SLP actually sells some mufflers made to fit there.
06-25-2011, 08:28 PM
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All valid points. I admit that Auger insert looks like crap, and I do believe the Borlamouth is the best bet, therefore i am going to go with the XR-1, I will most def have sounds clips
06-25-2011, 11:52 PM
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I have thought about trying these out before....
http://www.jegs.com/i/Car-Chemistry/...oductId=744688
http://www.jegs.com/i/Car-Chemistry/...oductId=744688
06-26-2011, 11:13 AM
#14
Only way I could see that claim plausible is on a big cube super high compression(13+) collector only drag car losing it around the 7500+ rpm mark.
06-26-2011, 12:45 PM
#16
https://ls1tech.com/forums/generatio...low-ugh-2.html
Heres an old thread about Spiral flows.
Ive actually ran some before. I was running pacesetter longtubes with 2.5" true duals feeding into spiral flows. Very small cam and the heads were shaved way down. No cross over. I hated the sound when cruising but they were by far my favorite sounding muffler at WOT. I think if I had an x or H they would have sounded better down low. I switched to Flowmaster one chambers and didnt notice anything different on the butt dyno. The flowmasters sounded way better cruising and idling but were very raspy up top. If I had to choose between the two it would be a coin toss. I may lean towards the one chambers just because people are complaining about losing power with the morosos.
Heres an old thread about Spiral flows.
Ive actually ran some before. I was running pacesetter longtubes with 2.5" true duals feeding into spiral flows. Very small cam and the heads were shaved way down. No cross over. I hated the sound when cruising but they were by far my favorite sounding muffler at WOT. I think if I had an x or H they would have sounded better down low. I switched to Flowmaster one chambers and didnt notice anything different on the butt dyno. The flowmasters sounded way better cruising and idling but were very raspy up top. If I had to choose between the two it would be a coin toss. I may lean towards the one chambers just because people are complaining about losing power with the morosos.
06-26-2011, 02:05 PM
#20
Dude, that magnaflow merge is GORGEOUS! !
The spiral flow is alot more free flowing than its given credit for. The totl muffler has the same size through tubing as the 'flows but without the extra space for moving around the spiral baffles. Instead it uses two through tubes to achieve its flow nimbers. Also you can't judge a mufflers performance by the way that it looks from the inlet. Heck 1 chamber flowmasters look like you are hitting a brick wall, but they still flow well enough that alot of big power cars can run them without negative effect. I would be willing to bet that if you took all of the big name mufflers/resonators on the market that all of them would flow within 10% of each other.
For 99% of the "performance " cars on the street any reputable brand muffler will meet and exceed their need for flow. If more people took the time to build an exhaust to suit their needs for their particular setup instead of the flavor of the week you would find alit more satisfied car enthusiasts with their cars sound and performance.
The spiral flow is alot more free flowing than its given credit for. The totl muffler has the same size through tubing as the 'flows but without the extra space for moving around the spiral baffles. Instead it uses two through tubes to achieve its flow nimbers. Also you can't judge a mufflers performance by the way that it looks from the inlet. Heck 1 chamber flowmasters look like you are hitting a brick wall, but they still flow well enough that alot of big power cars can run them without negative effect. I would be willing to bet that if you took all of the big name mufflers/resonators on the market that all of them would flow within 10% of each other.
For 99% of the "performance " cars on the street any reputable brand muffler will meet and exceed their need for flow. If more people took the time to build an exhaust to suit their needs for their particular setup instead of the flavor of the week you would find alit more satisfied car enthusiasts with their cars sound and performance.