coaxils dont stick out that much.. and unless the stock grille is concave then you should have a problem. or just gte another component set and replace the mid and tweets at the same time, you'll beable to get the grills over a 2way if not take them back and say they dont fit no harm done.

 

To better answer your question on what a v box is I sketched a pic of what i think zzzzzzz was saying. this design has the subs firing through the ski hole and the ports firing through where the rear speakers are now.
I'd recommend 2 good 10's or 12's. 2000w+ amp and some 0ga wire. If your lights dim then upgrade batt / alt / big3

 

there we go! thats what this thread needed!

 

so the boxes for both the subs are separate ? And should the inside port be in a zig zag , will that produce more bass and good lows ? By the way how hard do you think those subs will hit ? And another thing i am buying the speakers from Onlinecarstereo.Com - Wholesale Car Audio/Stereo Deals At Bargain Prices , is it easy to return them there ?

Will these be fine ?
http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=19136

 

the port has to be how ever it needs to be to fit in the box... the straiter it is the better every angle is a chance for cancellation.

everything is a pain in the *** with online, returns warranty all that stuff huge pain!

 

Will these Premier Speakers be able to fit in these door panels http://www.zeckhausen.com/images/Mod...nes_up_now.JPG
And which amp would be best to power these speakers ?

Will the bass still be more then the sound of the speakers , i hope they do not distort after i turn it up , its total 800 watts , is it enough ?

 

you cut the bass out with the x-over in the amp, you take the bass away from them and let the subs do the work.

as for fitting its hard to tell with out seeing inside what you need to do is take the cover off and have a look inside and figure out just how much room you reallt have to work with

 

with that design I would put a panel of mdf on the top and bottom of the space between the boxes to help direct the sound through the hole instead of in the trunk. One option for the ports is 4" pvc pipe with 45 degree corners where needed.
with that much power you should have more than one 4" port per box and have flared ends to reduce port noise

 

So will those Premier SUBS really kill Best buy or future shop systems ?
I've heard they hit pretty hard.

And Micardio are u saying that i should have a port going into my car rear , where the speakers are ?

And which amp will be good for those speakers ? Somethin cheap just want it to get loud n let the subs do the bass

 

i know bmw likes 5 1/4 speakers
the pic would not work
things like the window the door skin will come into play if it fits
i had focal in my old bmw and MB Q's
thank you Micario for the pic