yes but you are comparing a turbo to a supercharger
supercharger is a lot more reliable , less moving parts, easier installation
the guys running the ESS supercharger have been pretty happy. At the beginning there were some tuning issues , but they have been resolve for the most part
There have been a lot of progress in the aftermarket scene for the N52 engine. One member with full bolts on is running on par with stock 335 number 0-60 ( 5.2-5.3 sec) .
If you want to move to massive numbers I can think of better platforms than a 335 that would cost less and be a lot more reliable.
Honestly for tracking a solid 300 whp with a good suspension set up , good brakes , a nice set of tires and somewhat reliable is more than enough to have a lot of fun . There is not need to have a 400 whp , vas majority of people wouldn't be able to control it anyways
If we are talking about drag racing , unfortunately there are much better platforms out there, C6 , any V8 muscle car ...
Like I said , to me , it all depends on how much money you have already invest or dump on a car to see if a trade in for an unknown condition car is really worth it. Unless I was upgrading to a whole different car or a m235 , even 435i , m3 or 335 IS , is not really worth the trade
Now if someone came here and ask which one is better to purchase and he wanted power, no doubt , get a 335 from the start, specially now with such low prices
