04-03-2022, 09:00 AM | #1 |
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IPE Catback + 300cel downpipe + Dahler valve controller
Featured on BIMMERPOST.com I am not a big fan of IPE since most of their sports car systems IMO are decibles over tone but I must the G8X IPE catback surprisingly has quite a deep tone and the sound is just loud enough to be noticeable but not obnoxious. The fitment is straight forward bolt on which is really easy, one thing to notice is that the mid-silencer is really thick so when installing need to make sure it's not touching the heatshield. If you feel a drone with the IPE then that's the mid-silencer touching the heatshield (because it happened to me lol). I wasn't planned to install the downpipe until the direct ECU flash is available but my friend bought me as a gift so why not. I installed the Dahler valve controller with the exhaust and this is probably one of the easiest mods to install ever and it works perfectly. This setup is as quiet as stock when valves are closed and has absolute no drone at all . Even with valves fully opened with the valve controller the drone is very minimal as well. I can cruise in city in comfort mode with the valves fully open comfortably, the tone is really deep in the lower rpm range which is really enjoyable to hear when driving low speed in town. Stationary rev In-car sound I will try to record some outside driveby soon. |
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05-23-2022, 02:49 PM | #2 |
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sounds great! Is the downpipe 100 cel or 300 cel downpipe? What's the brand of the downpipe? Can you tell me why did you get a dahler valve control, does ipe not include one since the ipe exhaust is also valved? How loud is it? Thank you
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05-24-2022, 07:37 AM | #3 |
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Thank you for the review
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05-24-2022, 09:07 AM | #4 |
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300cel catted one, I would recomend you get the HJS 200 cel one or the ones with the GESi 300cel. As for the valve controller, IPE uses the OEM valves but with the OEM valves, the valve will never fully open no matter what due to the stupid noise limit regulations. With the valve controller you can fully open the valve in any mode and you can revert the valve operations back to OEM with a press as well. With the valves closed it's pretty much the same as stock, really quiet and no drone at all. With the valves fully opened still no drone at all and it's loud enough to have a presence but not obnoxious.
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05-24-2022, 10:12 AM | #5 | |
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So the ipe system uses the oem valve, that is taken extactly from the oem car valve, or is it ipe's valve but plugged into the oem plug so that it listen to the oem command? If it is the first option, is cutting needed? So what you have done is smart, you just put on a valve module, is it convenient to use? Also, How you you describe the loudness compared to other cars? The decibel ipe claim is ~110 to 116 depending on the kind of downpipe which is pretty loud? Is that how you felt? The stock m4 is very quiet in my opinion so I wanted something much louder. If more info can you given would be lovely. |
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05-25-2022, 12:51 AM | #6 | |
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05-25-2022, 01:45 PM | #7 | |
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05-26-2022, 05:25 PM | #8 | |
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