hi mate, I use a 3.0 h6, its 210 bhp with out over bosting about this model, its the best 6cly car ive had has a all round user, I use my car for work 6 days a week its got 164 tho on it & u wud think 64 how it drives I had a 528 e39 good car but the h6 is better I had a alfa 3.0 the h6 is better 2.9 ford h6 better, omega v6 h6 better.i was goin to get a 2.5 read a lot of forums all saying same like the ladds have all ready sed, the h6 will do or be wat ever u wany it to be I work with mine & also put some good sports cars to shame, read my content for resent stuff oh & my car is a 2002