[JBA87]

The other M5 is not stock .

The other M5 is Hydra Stage 2 93 Octane w Keller Primaries (I don't think he has secondaries) eventuri intake and meth injection .. he had a passenger

I was running DME Stage 2 E30 Tune w Evolution Racewerks Primaries and Secondaries. That's it. Just me in car

[KellerPerformance]

Originally Posted by kdm1230

Will installing just secondary cause CEL to be lit?
Also how is the sound difference between primary+secondary vs secondary only?

NO CEL with just secondary, the sound is obviously a little less aggressive with just secondary

[FSociety]

Originally Posted by kdm1230

Will installing just secondary cause CEL to be lit?
Also how is the sound difference between primary+secondary vs secondary only?

No CEL with Secondary https://www.bm3tuning.com/bmw-f9x/keller-performance

Originally Posted by JBA87

The other M5 is not stock .

The other M5 is Hydra Stage 2 93 Octane w Keller Primaries (I don't think he has secondaries) eventuri intake and meth injection .. he had a passenger

I was running DME Stage 2 E30 Tune w Evolution Racewerks Primaries and Secondaries. That's it. Just me in car

Yea that Hydra car is extremely slow, he's still running almost stock times for months LOL. Been seeing him on dragy for months and spoke to him once on FB, he's so furious he spent so much money on meth and still no difference.