http://www.clarion.com/ca/en/products/2005/audio/subwoofers/SRW1245/ca-en-product-pf_1138706936972.html

Do you think 4 of these would push some air??? i can get them cheep rite now

 

i had two of these b4 and hit 141 with the mic at autosonics here in guelph,

 

This is my idea for a box i could build n have the ports facing into the car.. maybe add Like the pipes i saw coming out on a couple cars with some pcv pipe , i need ur guys expert advice.. My cars a Toyota tercel. haha and sorry about the crappy pic of the box..lool, i suck just a quick sketch

 

The black tercel right? I would def. use a better setup! But more or less what is your ultimate goal with this?

 

^^^^ Yep.
4 12s ported in a Tercel? With Clarions?
Buy one good sub, that likes a port and you'd do better IMHO.

 

I want a 145 minimum, im hoping maybe this type x can do it just, im way underpowering it maybe ??

 

Anything's possible. Not the ideal system for those kind of numbers.

I don't know if durability or daily drivability is a big concern for you, but trying to hit those numbers with that equipment is going to require a box with a very limited bandwidth and frequency response tuned to your vehicle's resonant frequency. 1 note wonder enclosure.

If you got that much room in your Tercel, why not go with some 15s with some higher power capabilities. DD2500 15". RE Audio SX 15s. Something like that.

 

I wanna custome make the box into the trunk so it cant really come out inless u dis assmble it, Wat does a set of RE audios usally go for? and can you get them locally?

 

Depends on how much power you got to throw at it, but at your 145dB target, id expect to have a pair of RE Audio SX 15s for super stable reliability with a couple of kWs, or a pair of RE Audio SE15s to save some money but be pushing em hard with a couple of kWs.

Couple of places around Guelph, ON to take a listen.

Perfect Tones in Milton, ON
Selective Sounds in Mississauga, ON

I dunno if Orangeville is close but theres Channels Electronics too.