Here is a write up my buddy and I did already check it out. On there I am Spatty (jake) My buddy has a 281Hp and 361Tq speed6 was the one who wrote this enjoy. If you have any questions let me know.
Yep. We just installed a TurboXS downpipe on Jake's (Spatty) Speed3. For those of you thinking about doing this, be warned, it's a pain in the ass lol. Myself (Brandon), Spatty (Jake) & Bobopud (Patrick) went to Autobayz in Littleton and rented a hydraulic lift to speed the process up... Even with the use of a lift, it took us about 5 hours, but we had a few snags along the way. The first one was we (me actually lol) almost stripped one of the nuts holding the mouth of the downpipe to the turbine housing, specifically the lower nut closest to the motor, as it was a total pain to get to and break loose. Note to anyone considering this- when breaking loose nuts on the downpipe/turbine use a 6 point socket (14mm), preferably with a 1/2" driver and plenty of extensions & swivels, as using a 12 point socket can easily strip the nuts.
Beyond that, we had to "walk" his lower O2 sensor back and forth so it wouldn't strip (which it didn't!), and TurboXS sent the wrong size gasket, so we ended up putting it on a vice and drilling it out a little to make it fit lol. Like I said it took us about 5 hours, although if everything would have went smoothly, I think with the lift, it could have been done in about 3.5 to 4 hours if all went smoothly. This is the second one I've done on these cars (first was on my Speed6), and I can honestly say I never want to install one again, as it's a pain, and I'm pretty much sore all over lol, which I'm sure Jake is as well.
Now for impressions.... after reseting the ECU and driving the car for a few minutes, at first we were like "I guess it pulls harder... kinda", then after Patrick left and driving the car for a few more minutes all I have to say is HOLY s*** that thing pulls hard! It made a very very noticeable difference! I can honestly say I didn't expect it to make that big of a difference. I would say from a roll, Jake's car is probably very close to mine in terms of raw acceleration. It's also damn throaty now, much lower grumble than I was expecting, sounds great, and has that wonderful "no more cats smell"!! LOL.
Like I said, I'll give anyone pointers, but my back is killing me and I really don't want to ever have to do this again. I can say with certainty though, aside from the downpipe/turbine bolts being harder to get to/break loose, swapping DP's on a Speed3 is easier than a Speed6. As in a MS6 the DP has to be pulled out from the top, which involves removing the lower motor mount as well as the side motor mount, and rocking the motor forward to pull the downpipe out, whereas the MS3's DP came right out the bottom, without too much of a problem, no need to remove a motor mount at all. This mod is not for the faint of heart, attempt it only if you feel comfortable working on cars in general... it's not overly difficult, but very tedious, and busting bolts loose is pretty labor intensive.