Post up your Rear muffler set-up!!! In need of inspiration!! - Page 4 - Club Lexus Forums


Post up your Rear muffler set-up!!! In need of inspiration!!

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Old 07-08-12, 01:12 AM   #46
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Hey jrm where are you located. I would like to hear your exhaust. Im planning on doing the same exhaust on my 91
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Old 07-08-12, 06:46 AM   #47
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can u remove the resonators legally in california
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Old 07-08-12, 12:48 PM   #48
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you can replace everything after the cats and still be legal to the letter of the law, limit or sound however is 95Db when tested in accordance with SAE J1169.
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Old 07-08-12, 01:13 PM   #49
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I am in Orlando. Don't know if that is close to you or not.
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Old 07-10-12, 05:58 AM   #50
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^^ picstures of exhaust?
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Old 07-10-12, 10:13 AM   #51
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Quote:
Originally Posted by akitomk3 View Post
^^ picstures of exhaust?
uhh who are you asking ?
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Old 07-10-12, 11:18 AM   #52
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I'm not trying to stir the pot I'm just adding my experiences as well as some limited understanding to the post. I've had two exhaust designs that I didn't quite get right (quiet enough).

The reason that a resonator will knock down more of the higher frequencies is because more of the anti-nodes of the sound wave are contained within the resonator. So the longer your resonator the lower the frequency that a resonator can contain given all other things the same.

A chambered muffler takes sound energy converts it to mechanical energy (movement of the baffles), and cancels some of the wave on itself (I'm not convinced a lot of that happens). If someone took a well-designed baffled muffler and made it out of 1/2" thick steel it wouldn't do as good of a job.

On my H22a Prelude I put a highflow cat, the largest resonator and the largest Magnaflow that would physically fit in the two locations. It was way louder than what I was wanting (sounded pretty sweet, but I don't want to hear the car unless I'm popping VTEC).

On my Chevy K30 I put the largest Flowmaster I could get on and it's too loud too (sounds pretty sweet, but not what I'm going for). My Silverado has the stock cat and a long glass-pack (resonator) and it sounds better than either of the systems I put together.

So the answer is it depends on a lot of different things, pipe size, length, muffler type and quality, motor displacement, number of cylinders, and red-line are just a few. The best thing you can do is go listen to lots of cars and find a sound that you like and copy that. That's not usually possible, so you have to use the advice of people and your own judgment. The great thing about the LS is that you can just start disconnecting things to get a feel for how it would sound in a given situation.
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Old 07-11-12, 06:05 AM   #53
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I meant to ask jrm7785 since he said in the previous page he had his exhaust done
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Old 06-19-13, 11:53 AM   #54
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Default LS400 UCF Exhaust Picture Thread

Examples (not mine):


5 Zigen Axle Back UFC10:
Part # FMT001P





5 Zigen Fireball Mega UFC21:


Last edited by CIGLexus; 06-20-13 at 03:04 PM.
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Old 06-19-13, 08:28 PM   #55
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Great idea, since we don't have one yet...right?

I think for the custom exhaust you should state what was done and maybe the parts involved.
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Old 06-19-13, 08:46 PM   #56
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Junction Produce (JDM):


Last edited by CIGLexus; 06-20-13 at 03:06 PM.
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Old 06-20-13, 02:21 AM   #57
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you mean a thread like this?

merged.
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Old 06-20-13, 06:08 AM   #58
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Totally forgot about this thread hehe thanks PD
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Old 06-20-13, 01:50 PM   #59
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i was looking for this thread to help out but couldn't find it. PD to the rescue, and merge!
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Old 08-29-13, 06:15 PM   #60
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Im newbe here.. Just bought a ucf21 last saturday and am looking at exhaust and ive been looking at these tips.. Whatcha think ??

http://www.ebay.com/itm/161087066829
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