Gmc Sierra 2 DC lvl 4 18" xl's

[tv559 0]

Ok guys I finally got everything in so Im having my box built early next week. Here is a Design below for my 2 18" Level 4 XL's:D. Its going in my 03 Gmc Sierra Ext. Cab taking the back seat out for this. Specs are 190 3/4 sqin port area tuned @ 33 hz and is 11.27cuft after displacements

Everything thats going in the truck Plus 2 Large batteries and the MLA module which are not in the pictured

And the actual truck

I will update with pics when the box is being built..

[jrod1050 5]

Lookin good. keep the pics coming

[Quentin Jarrell 671]

That back wall is going to flex something horrible with the port going all the way across. Make sure you brace it well.

[Kanaworm$ 292]

Going to be loud! Nice looking truck!

[RobClay 20]

Ye, that's gonna be insane. Im ready to see it finished

[XxedgarxX 2]

love the setup

i might use your box design if you dont mind

[3stagevtec 2]

your port's cross sectional area is 54.5" by 3.5", which gives a ratio 15.57 to 1!

The ratio of W to h should not be any more than 9 to 1 to prevent tuning shifts introduced by excessive friction between the rapidly moving air and the port's surface. It should be noted that this is not a hard-and-fast rule, merely a rule of thumb to help you prevent a mis-tuning.

In short, keep the port as square as aesthetically and physically possible.

takes from JL tech section.. personally, i try not to cross 6:1 when designing ports..

nice truck, nice subs and nice amp btw!

[tv559 0]

A couple quick pics of the box. Everything will be installed wednesday.

[B7L|BL4Z3R 4]

that box looks grand

[Duran 387]

Nice lookin' gear you have!

[cman0655555 0]

Looking good man love the truck its sexy as hell!

[XxedgarxX 2]

great box

are you doing any vids after is done?

[rumbleBee2 0]

truck liner for he paint?

[- Nickelz N Dimez - 0]

truck liner for he paint?

Wondering the same thing?

[tv559 0]

Yeah its rhino bed liner stuff.^^ I will post vids after the install.

[tv559 0]

More pics of the box.

[tv559 0]

Pictures of the install. Its a big ass box

[Johnnymgl 1]

DAMN.. THAT LOOKS CLEAN!!

[tv559 0]

DAMN.. THAT LOOKS CLEAN!!

Thanks that rhino liner looks a million times better than carpet imo

[XxedgarxX 2]

love your setup and your truck

[tv559 0]

Thanks guys^^

Here a quick vid I made volume was at 21 on a Pioneer Hu. I'll have more monday after I get it tuned.

[Juslivin 1]

Are you using the stock alt? I have the same truck and was wondering if i would need to get a stock alt if i upgrade. I have the 4.8L v8, is this what you have?

[XxedgarxX 2]

nice video

do have any dynamat on the roof?

what about the flex from the back window aren't you worried getting it loose then the worst thing fall and break

this might look getto or whatever but i put tennis balls on mine between the cab and the box so is harder to flex

Edited May 11, 2009 by XxedgarxX

[tv559 0]

Are you using the stock alt? I have the same truck and was wondering if i would need to get a stock alt if i upgrade. I have the 4.8L v8, is this what you have?

Im am using a stock alt for now. I have a 4.8 V8 as well.

[tv559 0]

nice video

do have any dynamat on the roof?

what about the flex from the back window aren't you worried getting it loose then the worst thing fall and break

this might look getto or whatever but i put tennis balls on mine between the cab and the box so is harder to flex

No dynamat at all. Idk why but it seems like the 99 and older trucks are a lil more flimsy and the 99 and newer are a lil more solid. Cause I know someone with a 94 Silverado and 1 18" and it flexes between the cab and the bed of the truck bad and he puts tennis balls there. Mine does flex but sounds more solid and hits hard.. Im turning the gain up today and tuning it so I'll have more vids:)