03-04-2018, 07:38 PM | #1 |
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Soul Performance axle back exhaust
I saw a post from Soul Performance Products on this site some weeks back promoting their new axle back exhaust system for the F10 M5. It's a straight pipe system like the Turner but has resonators built into the pipes just before the Y-split, to get rid of low RPM drone. This set up intrigues me, as does the low price.
Has anyone here tried out this system yet? Thoughts/opinions? |
03-05-2018, 08:30 AM | #2 |
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I just installed the Soul system and with decent weather have been able to drive with it in the last days. It's well built, with good clamps for the tips as well as the attachment of their exhaust into the stock system after cutting. The rubber plug they supply for the vacuum line to the exhaust flaps is poor, however. A small point and easily remedied with a little thinking for a better solution.
I'm pleased with the sound of it, both on acceleration and high rpm deceleration. The one spot that isn't to my liking is around town with trailing throttle at low rpm deceleration. There is drone in this situation, but with a downshift it is mostly defeated. Soul didn't list their black tips as an option for the M5, but were able to provide flat black tips for me at my request. There's no drone at any point while at steady throttle on the freeway, from 1500 to 4000 rpm. Overall I'm very happy with it, and being able to hear the rpm changes in the cabin, the very quiet cabin, helps me with shift points even though I do have the HUD. |
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03-05-2018, 10:28 AM | #3 |
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Thank you Used2be for the Kind words on the quality of our system! Just wanted to note we have since addressed the issues with the vacuum plugs and are now including laboratory grade hose plugs.
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03-05-2018, 10:31 AM | #4 | |
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03-05-2018, 11:32 AM | #5 | |
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Is the drone on low RPM deceleration loud enough to bother you? Have you considered disabling ASD to see if that makes a difference? |
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03-05-2018, 11:58 AM | #6 | |
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The drone is a bother to me, hence the downshift to ameliorate it. As to the ASD, I've followed that over the years and saw no need to disable, but I might try it now. I'm still not clear on whether disabling it affects my standard HK sound system, or the BO version? I'll research the posts on that and decide whether it's a fuse I pull or some wires to the components on the left side of the trunk. Oh, I should mention I have removed the cats from the stock DPs and have a flash tune. |
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03-05-2018, 02:35 PM | #7 |
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03-05-2018, 02:49 PM | #8 |
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Catless DPs will make a difference but will they contribute anything to drone? My understanding is drone has more to do with the design of the midpipes and rear section, rather than the downpipes.
Used2be, getting rid of ASD might help get rid of the bit of drone you're having. There are threads on this site about how to do that (pull the wires, or have it coded out). It shouldn't do anything to your sound system. As for sound description I was referring more to quality, rather than loudness. I came from an AMG before my M5 and that car sounded like a distant thundercloud when cruising around town and roared when you put your foot down. I'd love to recreate a bit of that menacing rumble. |
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03-05-2018, 04:32 PM | #9 | |
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I have the cold start turned off with the flash tune, but that deep quality you like is there at start up. I like the sound of it now, but I don't think it's quite the deep roar you get from AMG when accelerating. I like the fact that it wouldn't be difficult to swap the stock mufflers back in. Once you've cut the exhaust pipe, the Soul clamp will serve to attach the stock muffler as well. |
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03-05-2018, 08:18 PM | #10 |
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Wow, that was quick. Thanks! That's useful information.
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03-05-2018, 10:15 PM | #11 |
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Do you have a picture of your flat black tips?
Is this available for the f12 M6 Soul?
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03-06-2018, 10:32 AM | #12 |
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Here's a picture of the flat black tips on my M5. They're very basic and a bit industrial, but since I'd painted my diffuser black they fit into the look. I don't know what's available from Soul, check out their web site.
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03-15-2018, 02:18 PM | #14 |
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Mike in Marketing here - we've started prepping to offer satin black tips for our M5 / upcoming M6 exhaust! They should be ready to go in a month or less.
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09-11-2018, 04:47 AM | #15 | |
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09-12-2018, 07:57 AM | #16 | |
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I'm very happy. Cold start is VERY loud. Its not too loud for me, its not even too loud for my wife, but I'm worried my neighbors are going to get annoyed since I leave before the house before it gets light out.
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09-12-2018, 09:26 AM | #17 | |
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09-12-2018, 09:37 AM | #18 | ||
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This! The cold start is primarily to light off the catalytic converters/ emissions purposes. We have a lot of customers who incorporate a cold start delete into their tunes for various cars. |
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09-12-2018, 12:53 PM | #19 |
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That's the plan!
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