And last question.... what are the benefits of doing this ? Run smoother etc ?
And could you reprofile the butterfly to aid airflow ? ( I've done this numerous times on my twin su's for my classic mini and makes a big difference )
Cheers james
And could you reprofile the butterfly to aid airflow ? ( I've done this numerous times on my twin su's for my classic mini and makes a big difference )
Cheers james

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