Yes. I went that route and the difference is night and day. Honesty the x-pipe should be more than the rear section based on how much it contributes to the sound and performance of the full evo. You won't regret it.
08 E90 | Jet Black / Black | 6MT
Mods: RAC RG63 w/ Pirelli Corsa 255F/285R | Akrapovic Evo Exhaust | OEM Blacklines
Winter Setup: OEM 18s w/ Nokian Hakkapeliita R 245/40-18