[niksss]

Hello guys. Today I tuned my 2011 E92 328xi with the N51 engine. My mods are: charcoal filter delete, K&N air filter, secondary cat delete and a tune. I got 258hp at the crank. I am happy with the result, but my tuners told me that if I remove my primary cat, the car will be closer to 280-300hp at the crank. However I think that I will loose low end torque, am I right ?

P.S: My car before the tune, with all the other mods outputed 232hp, which means that all the other mods didn’t add much gains. I am attaching a picture of the dyno.