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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications BM3 stage 2 question

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      07-03-2020, 08:52 PM   #1
Genieman
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BM3 stage 2 question

Hey I was looking at PTF's website and for the b58c they claim 21% HP gain for stage 1 and 25% for stage 2. 4% is like 16-20hp. Doesn't seem worth it. Are those numbers right? Other than sound is there any meaningful benefit to getting a DP and going stage 2?
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      07-04-2020, 04:06 AM   #2
Don76
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I think most of that gain comes from the less restrictive sports cats you need to fit.

I'm going stage 2 next week and from what I understand, whilst the numbers aren't as impressive, the less restrictive feel and quicker revving makes quite a difference to the way it drives.
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      07-06-2020, 11:29 AM   #3
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20 HP is still a very good power increase
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      07-06-2020, 01:30 PM   #4
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Quote:
Originally Posted by mike@x-ph.com View Post
20 HP is still a very good power increase
Maybe if you're going the catless route and spend 400 all in. If you're going catted plus installation and spend north of $1000, seems like a lot. I guess there is always the potential of a new version of an OTS map that can do better.
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