Are z4 20i safe for a pop and bang map

[Contron22]

Hey guys I'm new to this so go easy haha. I'm buying a bmw 63 plate z4 sdrive 20i and I want to get it remapped. I've been told their safe for 260bhp but tbh I'd feel better if I got it mapped to 240 just to be safe. Also I want a pop and bang map installed. But my mapping place has told me that these engine their is a risk of blowing the valves out and he would recommend it for my car. What's your guys thoughts ? See I thought this engine was the same as the new mini cooper s engine. And they pop for fun standard. So what's the truth behind this ??

[Contron22]

Just to let yous know. I will be getting a custom exhaust on the car. For this map I'd have to run decats or very top end sports cats for it to handle the pops. But anyway I'm not sure if I will get the pop and bang added. But have any of yous had experience with mapping this engine ?

[Contron22]

It will be a proper rolling rode custom map buddy. They have said I can give them a power figure and they will tune It to that output. They said their normal map for this engine is 258 on a totaly stock car so I was saying 240 to keep it under stressed?

[Contron22]

OK I se your points so it's probably not a good idea to get a pop and bang map. I just thought it would be good fun for when I go down my local car meet and car shows. The reason why I was saying 240 bhp is because ac shnitcher ( possibly the biggest bmw tuner. Maybe of exception of dinnan) they map this car to 245 and give you a compleat warranty to back any faults up. But it costs 2500 pound so I thought it would be a good idea to ask my local tuner to map my car to the same or close to the same specs as ac shnitchers map

[Contron22]

I'm 20 years old guys and I can't get insurance on anything bigger than a 20i

[Contron22]

So where's this E maps place at ? Because up near newcastle haha