I have a question I need answered cause if so, im taking them out tonight! I have 2 12's in my trunk not under the bar just in the open trunk the big part if you know what i mean. They ARE drilled in though. Their pretty heavy, normal 12's... Would this make my gasmileage alot worse, and also how much worse does my handling get?
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Your Z is now an M1 Abrams tank.

 

I think between the subs, box, and amp should be around 200 pounds, or a little more than the difference between a full tank of gas and an empty tank of gas. I would say there could be a slight difference in gas mileage, but nothing much. It's like always driving with someone in the passenger seat.

 

it feels like it doesnt pull as hard.. or is it just me? i need more opinions

 

Did you account for how much weight those screws added?

My god. I'm surprised the car is even drivable. I'd have a claims inspector check it out, it may be totaled, you might be able to get a nice little check from it. It's your best bet at this point man, sorry for your loss.

 

Thats crazy. Those must be the heaviest 12's on the planet. They filled with gold? IMHO you shouldnt be able to tell the difference. Not with a couple 12's...no way.

 

would it help if i took a picture for you guys?

 

M1 Abrams tank

 

alright i added pictures guys, let me know!!!! Put them in the first post, up

 

lmfao funny guy

 

200 pounds makes a big difference.
If you were to race a Z just like yours but without those subs he would probably pull you every time.
I would take them out (Or never allow them in my car)

 

and gas is worse as well right? i think ill go pull them out right now haha.. what if i got the custom box that fits behind the bar.. that would workout to be alot better right

 

Why would that work out better? You still have the extra weight right? You just moved it. If you want performance (speed) you dont care about having a box the end.

 

ok so i took out the subs just now and testdrive it hit it and it felt alot lighter.. i picked up the box though it felt like it was only about 70 pounds at the most.. maybe it felt like it was affecting it alot because it was right on the rear tires

 

It blocks exhaust noise quite a bit so it effects the butt dyno more. My sub/box/amp/wiring weigh in at well over 100 lbs, and 100 lbs can be a tenth or two in the 1/4 and a mph or two in trap. That said - I have a 40 lb 10" sub and a reinforced box with a bit of tweaking, 0 gauge, etc. So my setup probably is heavier than yours. I feel a bigger difference than there is however because of the extra rear grip, and the lack of noise.

 

Hey there is an big ugly square home made box in your car.

 

hmm.. i dont know if i should leave them out or put them back in..

 

how about u lose one of those 12's and do a clean box and then u answere ur problem and make us not puke seeing that set up...

 

Ditch the 12's , thumping around town like a homie is a thing of the past.

 

Small car, why do you need 2 12's?? 1 10'' will do more than plenty.. try a Zenclosure