In Reply to: 525ia is not worth chipping posted by Louis on January 27, 2000 at 00:27:44:
: I talked to Turner Motorsports & was told that the Jim C. chip in an Auto 525 is not really worth doing because the car is so heavy. The extra hp gained wouldn't be noticable with the auto tranny. A manual tranny 525i or 535 would be a better canidate for the Jim C. mod.
: : If I put a performance chip in a '95 525i with automatic transmission, do I need to do anything to the transmission?
It might not be "seat of the pants" noticeable, but if you do the math, depending on an early 525i (168hp) or late 525i (189hp) you're getting anywhere from a 9-14% increase in horsepower for only $225-250. What else can you do for that amount and see the same gains? That's good bang-for-the-buck in my book.
Now my '89 has as much hp as a newer Vanos-equipped 525, smoother idle and acceleration, and best feature--no new monthly payment. These sleds aren't hotrods, but they all drive excellent once up to speed, just enjoy it !
ron 89 525i (sharked and happy)
p.s. 535i is heavier than 525i in both tranny formats, what Turner should have told you is that the chip doesn't give as dramatic results in the small-6 engines.