View Single Post
      02-04-2013, 11:19 PM   #11
SDemetris
FSAE Dude
United_States
29
Rep
745
Posts

Drives: E90 328xi
Join Date: Jul 2012
Location: Pittsburgh, PA

iTrader: (0)

Quote:
Originally Posted by E46driver View Post
Then doesn't that mean the n51 cars come from the factory with more power overall?
no. the compression ratio of the n51 is lower.. not by much, just a little. I am pretty sure the n51 also has an extra set of cats. someone can correct me if i'm wrong, but i think those are the two biggest differences
__________________
2007 TiAg 328xi: AA Tune, AFE intake, Full exhaust, 335xi Brakes, H&R RSB, UUC FSB, H&R Sports, Billy Sports...BBS SR 17x8

1985 Gazelle Beige 325e: Poly everything, e24 3.25 LSD, 225 lb weight reduction, Corbeau FX1, Shifter machined by me, roll bar, harness, all the other goodies. My "Racecar"...15x7 BBS RA