Originally Posted by edeeZee

Get Stillen, supposedly they got like 18 wheel hp gains. Nismo is about as futile as adding a "TRD" sticker to your Toyota.

Nismo plays it SAFE by yielding low hp gains because it works in conjunction w/ the factory warranty and Nissan is liable for any dealer installed Nismo parts.

The only hp-factory parts in my experience is Honda Type-R. Civic type R cams, header, etc. make real HP for Honda cars.