I have to say if you can get it cheap, grab it while you can. I did this to my SVT, it was great. Mine is not heavily modded and that's been my favorite addition. It takes a little work and most likely, you'll have to go as far as pulling out the butterfly and flipping the insides of the TB around, then install it upsidedown. It takes a little creativity, but works great. It took about 4 or 5 hours to get it all done (of course, we had to figure out how to do it) but it was well worth the time.