Seems everyone who has the big wheels all have dnyo's but no track times so it's hard to evaluate if it's worth the money or not. I've seen planty of 425-ish whp big turbo's run just as fast as a 380-ish whp stage 3. Just two different methods of going fast.
Now... if the big wheel S3's can preserve the ever-so-loved quick spool it's famous for while making more power up top too... well that's like having your cake & eating it too. I'm still waiting to see though
There's plenty of un-molested S3's running 11 sec & making 400hp. For most people that's plenty.
If you're still feeling the need to mod the S3 turbo I'd say port the S3, do the 3" bell mouth, external gate & call it a day.
