Stock turbo.....

What type of turbo comes on the DSM? is it a T25? I'm not an eclipse guy, i'm an sr20det 240sx type of guy. but theres a turbo company out there that makes the FP-Big28, and i dont know if it bolts right up to the sr20det.

All 2Gs have t-25's. 1Gs have slightly larger 14b for manual and 13g for auto. Since most sr20dets have t-25's the Big 28 should be a direct fit. For cheaper power and 14b would do but you would need custom piping or a j pipe

the S14 sr's have t28's though, so does that mean that the big 28 wont fit?

yes it should, it just has a larger compresser wheel.

http://www.turbochargers.com/currentspecials/t28_killer_files/image004.jpg