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Yeah the intake should make a big difference.
Another area on the N63 that could make a big difference is the blowoff valve. The X5M uses different valves, giving that signature "coo" sound when you let off the gas. The blowoff valves on the N63 may not be designed to handle high boost and may be another reason why the power drops off as the revs climb. If we could retrofit the blowoff valves from the X5M, I'd imagine we'd see some gains.
The next step is downpipes, and I suspect Dinan has something in the works for their stage 5 kit.
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2017 F-type SVR Black/black
2017 Nissan GTR Red/black
2022 BMW X5M MBB/SO
Gone but not forgotten: '12 X5M, '07 AM SuperVantage, '05 Boxster S, '01 BMW M3,...
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