Originally Posted by pbonsalb
If you want instant boost, the closest you will come is a positive displacement blower like a twinscrew of Eaton 4 lobe, but no kits are available for these cars.
Thank you, that's an excellent educational piece for somebody like me. But WHY are no "positive displacement" kits available for our beloved M3? Is it not possible to squeeze it in the engine bay (space constraint) or is it that they are not technically compatible with our high-revving motor?