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Hi all, I'm new to the n54 platform so please take it easy on my stupid questions!
I've got a 2008 135i with a high flow downpipe and a Milltek catback exhaust. It's a convertible, and even with the top down it's way too quiet in my opinion. I suspect that's due to the high flow downpipes. I really want to avoid replacing the downpipe.
Currently tuned to stage 2+ with the linear throttle (Cobb). I'm wondering what options there are for Cobb tunes to get a burble sound? Not sure I'd love it, but I just wanted to give it a try. Reliability is a minor concern, I have full supporting mods and it's a weekend car
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