I'm thinking of installing a Bi-Directional booster.
If the amplification is too much, is there some sort of inline filter I can use to reduce it ?

If you need an amp, Rogers will supply the appropriate one, or correct the signal, all at no charge. To reduce signal, it's possible to simply add a splitter - 2-way 3.5 dB, 3-way 5-7 dB depending on type. The unused legs should have a terminator on them.

you can use a pad (to reduce signal they come in 3/6/10/20's) this is better option than using a spliter can be installed on a amp on a dstb mdm where ever needed!