TESTING XHP’S NEW IGNITION CUT SHIFTING 

So if you're trying to maximize for ignition cut sound (braps) on the G42 platform here are my magic numbers: 1-2 + 20 2..6 + 25 7..8 + 35 To produce the sound reliably you need to be on full throttle at at least 4K rpm regardles of ignition cut settings. As an exercise I've spent months and probably 50+ flashes dialing in the torque reduction settings on my '23 G42 with the purpose of maximizing the ignition cut brap sounds. I can tell you +4 is too low if that is your goal. The reason I've had to spend so much time is that getting the sound is quite finnicky. Too little and it sounds closer to what we hear in this video And not to knock Mevans here, but his ignition cut sounds are practically nonexistant compared to what it's capable of. You'll know you've applied too much torque reduction when your turbo sounds like a large deflating balloon (kerplumbpffff) so the solution isn't to just slide everything to the right either (not to mention you'll really feel the lift shift, trust me on this). Granted if you're looking for pre-emission update G20 ignition cuts, you won't be able to get that obnoxious without an actual BM3/MHD tune and anyone who knows anything about post '20 BMW tuning is that you have to send your ECU for an all expense vacation to finland. Most of my tuning was done before the new ignition cut control setting, and it seems that torque reduction has the greatest impact on the brap sound. The new setting hasn't really helped that much b/c I think there needs to be a certain amount of boost for the ignition cut to actually produce audible sounds. Personally I haven't noticed that many issues with shift smoothness but to be honest I'm usually blasting around town in the manual mode. First gear you can get actual ignition cut sounds with as little as +10 iirc. The rest of the gears it's harder to produce the sound. Also I find the ignition cut sounds are loudest right after the car exits the cold start mode, but the exhaust is warmed up just right. At that sweet spot I can even get single gunshot pops downshifting as early as possible shifting from 4-3,3-2. I've been trying to get some footage of my car for bimmerpost, but my phone doesn't really pick up sounds well (more wind sounds than anything). By the way my car is completely stock so far except for an MPE.

This is amazing to me. I always wanted a first gen RS5, but I didn't buy one because I couldn't get one in 6MT..... I wanted a 6MT because I couldn't stand the DSG fart. People who don't have that sound are intentionally trying to add it? WOW. I had no idea. People like what they like, I just had no idea.

Is it me or are you a bit dissapointed in the end when it gets to the max of what it does?

Seems like a lot of work for noise less is more sometimes

Why are the stock shifts no xhp louder than the shifts with ignition cut upshift? Not sure if it was just the video and in person is different, but it doesnt sound like you would expect it to sound, have u heard a 2020 m340 stock upshift, its much louder

Thea Courts

Doee this have any pros or cons on performance?? Or is it for pure sound?

Didn’t know about this update! Interested in seeing what it does

How does the ignition cuts sound along with the MHD Brap ?

But what if i want an aggressive backfire on shift sound like evo's, supras, gtr's and subaru rally cars

What does pressing traction button once in comfort mode do? I thought it already has tc on default in comfort

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Robin Landing

Is there a way to remove the shift brap? Unpopular opinion lol

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Daugherty Causeway

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Kirlin Island

I have a 440i with mppsk and i dont have any upshift noise. Any suggestions what might be wrong?

Hey sir , nice video . You did only downpipes and mhd tune ?

Eden Ways

Pouros Throughway

Can I have this on 3000 rpm’s? instead of 4 have you tried it ?

But will the car explode?

Hackett Course

Romaine Meadow

stage 3 sounds like the stock trans tune on my bone stock LCI G01 M40i lol

Morissette Orchard

Roob Loop

Zieme Shoal

Carroll Union

What dash is that it’s sick

Can’t wait!

Little Turnpike

Does it work for a 428i with just a sport exhaust and stock downpipe?

My xhp stage 3 2 or 1 removed any shift brap I had

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Martin Matthew Hall Kenneth Anderson Gary

Fermin Tunnel

VonRueden Mews

Great Video! Do you think it is Bad in terms of wear for the transmission or other components?

Makenzie Camp

Heathcote Bridge

Looks like a Machine fart with this + pops and bangs 😂

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Ignatius Isle

Why it’s sound like stock m340 braaps on shifts?

Thanks for the info, Nice to have a vídeo showing the difrence . going to try it out

Nerd

have you tested 0-60 with/without ignition cut shifting ? does it make any real world difference ?

will this work on a 330e g20?

Cant hear any difference on low or high?

Good, informative video and testing! Did you have brap disabled from mhd when testing xHP? I have brap disabled in mhd (although Inlikednit) as it ruins (as in disables) the “gunshot” and “popcorns” I otherwise have. Seems to be an either or deal… how is it with ignition cut from xHP?

Thx for the vid ❤ So you kept it on 3000 rpm and 300 nm?

would this work in the 7 speed dct?

Great video man

Wouldn’t this slow the car down?

will this work on xhp stage 1? or does it not matter which stage you're using

It’s in MHD too, and from stock in my M140i called overrun brap.

Does leaving the car in the low settings for this feature affect the car ?