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M2 Technical Topics > S55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > s55 Stage 1 BM3 any difference between OPF and Non-OPF map

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      04-20-2021, 12:16 PM   #1
M2cLee
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s55 Stage 1 BM3 any difference between OPF and Non-OPF map

Can anyone confirm if there are any differences in the maps between having a stage 1 with OPF in place or with an OPF / secondary cat delete.

Would assume with OPF and secondary cat delete the lower pressure and temperature would allow a slightly more aggressive map, but unsure if switching OPF on the flash makes any difference?

Interested in the answer to this relating to both Bootmod3 & MHD for M2Comp
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      04-27-2021, 02:56 AM   #2
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I just did bench unlock/BM3 yesterday with OTS 93 map at pureturbos eu. I still have OPFs on (w Remus race back section) but today AA single mid-pipe goes on. I also did dyno yesterday stock and Stage 1 (two runs, both w OPF). I will try to get another dyno at some point with no OPFs to see if there's any delta.
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      04-27-2021, 08:54 AM   #3
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Quote:
Originally Posted by Kankles View Post
I just did bench unlock/BM3 yesterday with OTS 93 map at pureturbos eu. I still have OPFs on (w Remus race back section) but today AA single mid-pipe goes on. I also did dyno yesterday stock and Stage 1 (two runs, both w OPF). I will try to get another dyno at some point with no OPFs to see if there's any delta.
Nice and clean peak to peak gain throughout. Ambient temp with these runs?
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      04-27-2021, 11:33 AM   #4
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Quote:
Originally Posted by Kankles View Post
I just did bench unlock/BM3 yesterday with OTS 93 map at pureturbos eu. I still have OPFs on (w Remus race back section) but today AA single mid-pipe goes on. I also did dyno yesterday stock and Stage 1 (two runs, both w OPF). I will try to get another dyno at some point with no OPFs to see if there's any delta.
Nice and clean peak to peak gain throughout. Ambient temp with these runs?
Thanks! it was circa 60F.
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      05-17-2021, 02:31 AM   #5
M2cLee
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Originally Posted by Kankles View Post
Thanks! it was circa 60F.
Nice gains across the whole rev range! How is it with the OPF delete / AA Mid pipe?

Mines in the end of this week for ECU unlock, BM3 and midpipe.

Did you opt for the straight up Stage 1 93 or the Map switching pack to flick between the CS power / 91 / 93 octane Stage 1?
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      05-17-2021, 02:58 PM   #6
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Quote:
Originally Posted by M2cLee View Post
Quote:
Originally Posted by Kankles View Post
Thanks! it was circa 60F.
Nice gains across the whole rev range! How is it with the OPF delete / AA Mid pipe?

Mines in the end of this week for ECU unlock, BM3 and midpipe.

Did you opt for the straight up Stage 1 93 or the Map switching pack to flick between the CS power / 91 / 93 octane Stage 1?
It's just a different beast altogether in terms of power delivery with the BM3 and the sound from the exhaust. I'm personally very happy I went with single mid pipe versus EL. They both sound good but with the Remus Race the SMP does it for me. I also increased burble RPM to 3k and made it a little less aggressive.

I did straight up 93 stage 1 but I have 10% reduced torque in 1st/2nd.

Did a track day at Zolder last week and it was a hoot
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      05-17-2021, 03:40 PM   #7
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Quote:
Originally Posted by Kankles View Post
It's just a different beast altogether in terms of power delivery with the BM3 and the sound from the exhaust. I'm personally very happy I went with single mid pipe versus EL. They both sound good but with the Remus Race the SMP does it for me. I also increased burble RPM to 3k and made it a little less aggressive.

I did straight up 93 stage 1 but I have 10% reduced torque in 1st/2nd.

Did a track day at Zolder last week and it was a hoot
What wrapping material did you use?
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      05-18-2021, 03:01 PM   #8
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Quote:
Originally Posted by infinitekidM2C View Post
Quote:
Originally Posted by Kankles View Post
It's just a different beast altogether in terms of power delivery with the BM3 and the sound from the exhaust. I'm personally very happy I went with single mid pipe versus EL. They both sound good but with the Remus Race the SMP does it for me. I also increased burble RPM to 3k and made it a little less aggressive.

I did straight up 93 stage 1 but I have 10% reduced torque in 1st/2nd.

Did a track day at Zolder last week and it was a hoot
What wrapping material did you use?
3M 2080 matte black ...had some extra laying around so figured I'd give it a go. After the first TD I did at Zandvoort and all the rubber marks I knew I needed something additional. May go back to a clear at some point but still digging the matte for now
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