probably whys that?
Doesn't the insulation on the bonnet help soak up the heat? It can't just be for sound proofing surely?
I wanna get rid of mine now but I'm convinced it's doing something constructive - other than just sound proofing.
If not then its just adding weight and making it quieter!
Also, I seem to recall people getting rattles without it on - anyone else had this?
Definately wont be smooting however as i'm convinced theres a reason for the raised bits.
i took mine off recently. (its back on now as i didint have anywhere else to put it. ) with it off there was alot more turbo and DV noise. I always thought that it protected the paint on the bonnet from going funny with the heat. To be honest i still think that but either way the sound benifit was a nice one. I then took the seal off from the back of the bay as per suggestions made on here. turbo and dv, again were louder however there was alot of 'chattery' engine noise so its back on and i wouldt recomend taking it off.
I made three holes (haha yes three) in my box and even that made a slight 'grunt and hiss' improvement. Definately wont be smooting however as i'm convinced theres a reason for the raised bits.
I think they are just a product of how the boxes are made. The box is plenty strong enough without them I reckon!
Thanks for the answer, I did take mine off in the end - it's a bit louder and since all that weight (at least 5oz) is off the front end I reckon it's knocked about 3 seconds off my 0-60 time.
I won't be taking the seal off the back of the bay cus its all nice and shiney
As for the airbox, you need to get smoothing son!
PS part of the fun of modding your car is finding places in the house to stash the bits! My missus keeps finding car parts when she's looking for cooking implements and stuff. Best game ever.