[david_connoll]

I'm Ireland and have a 325i m sport 3 litre manual car.
I'd love to add a 3IM and a tune to get a few extra bhp.
Is 135,000 miles too used an engine to be doing this?
Timing chain done at 100,000.
Any general advice would be great.

[Tambohamilton]

It's fine, crack on.

[whyzee125]

Only if every stock 330i was about to expire at that mileage. Absolutely zero worries, proceed with confidence.

[cosmosschwarz]

Why was the chain done? I've had multiple BMW inline 6's over 200k and have never seen a timing chain go bad, other than the guides/tensioners on the V8 cars.

[david_connoll]

Thanks lads, would like to do the tune and inlet manifold possibly exhaust and air filter too.