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with the rb boxes. the vl turbo 5 speed and r33 manual turbo are the strongests. much bigger, and weigh a heap more.

Rb20det, vl non turbo, and i would Think that the r33 non turbo would be the same. i know the rb2 and rb30e non turbo are.

basically if u want a car to make good power, then get something to hold good power. r33 boxes are basically bullet proof for the average driver. theres always someone who can break them though, which goes with most things.

definatley go the rb25det if u can afford it.

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RB33 turbo box is the strongest and seem to be good for about 450hp mine failed at 490hp,the gears in the gts-t box are about a 1/3 bigger than the vl-t box =alot stronger but unshore what hp they will hold.R33n/a box well if you put it beside the other two boxes it's tiny i don't think it would be good for much hp at all.

If you can get it go the gts-t box,hope this help's

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