Bilstein Shocks?

[lewisunited]

Hi there
Im planning on lowering my 1.1 40mm on the rear, but iv been told that if i keep the standard shocks on it may bottom out with people in the back.

Firstly is this true and is it neccessary to uprate the shocks?

Secondly iv been looking at the bilstein rear shocks on KamRacing but im unsure as to which ones, iv been looking at the B6's but unsure on the best price, im on a bit of a budget and need to combine quality with value for money

Any help is greatly appreciated

Thanks