Evolve Primary Cat Delete / Test Pipes BMW E92 M3 on Dyno and sounds clips before and after

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BMW E92 M3 before and after sounds clips and Dyno of Evolve Primary Cat Delete/ Test Pipes on BMW E92 M3 with stock ECU. Car also had Eisenmann Rear Exhaust.
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Getting my M3 done by these guys in the new year, cant wait

jackgt
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Sounds good - I like the little bit of rasp without the primary cats.  It's hard to tell in the video - how much louder is it with the cats removed?

jgbedford
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I'm planning on doing this to my M3 here in Brazil, so although I'm not a potential client of yours, perhaps you could give me some help. My car has the BMW M exhaust fitted from factory, which is perfect sounding IMO and I'm concerned deleting the primary cats wil ruin the note. I'm ok being a little louder, but not if it's louder but not as nice, e.g. muffler delete Vs custom exhaust. Hard to tell from the video, but is the "raspiness" unrefined? Are there other videos, perhaps one with the OEM exhaust and cal delete? Tks!!!

abeisert
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£2.5k for stage 2, the difference doesn't sound is barley noticeable & hardly worth it imo, as for the extra power i couldnt comment until i tried but im sure id welcome it, but still 2.5k is a lot for the small diff imo

ukgforze