I had Akra evo installed. Very popular and the finish on the exhaust is just amazing. Felt the gain instantly. The cold start really ruin things. I didn't bother to get ECU tune and CEL is on. The drone at 2~3k rpm is just stupid. Anyway, I had iPE F1 installed 2 weeks later. Sound is purely subjective. iPE F1 blows Akra away. Enable on/off/auto on exhaust is pretty amazing. I like mine, my m3 sounds very very exotic. I see a lot of M3 with Akra and the sound is just
Man, Now. I can't find my remote. I just lost it underneath the seat.
