HUSH time: RPi silencing cones for E60/E63 Exhaust systems
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Originally Posted by C's Bimmer' post='982462' date='Aug 19 2009, 03:24 PM
LOL! Well, this brings up another question then. Hahahaha! Eloy - I'm considering the straight pipes for my car. We should talk. 
How much louder will my car be with straight pipes over the HF Cats?
How much louder will my car be with straight pipes over the HF Cats?
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From: San Diego, CA
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Originally Posted by C's Bimmer' post='982462' date='Aug 19 2009, 03:24 PM
LOL! Well, this brings up another question then. Hahahaha! Eloy - I'm considering the straight pipes for my car. We should talk.
How much louder will my car be with straight pipes over the HF Cats?
How much louder will my car be with straight pipes over the HF Cats?
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Joined: Sep 2007
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From: Hong Kong
My Ride: 530i
Mods: M5 sporty package, M5 Steering wheel, Sprint Booster
I wonder why not others brand name use the adjustable valve for control over sound. Then customer can make whatever they like.
Just idea only
Just idea only
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From: Fullerton, CA
Originally Posted by ricky1329' post='982873' date='Aug 19 2009, 08:53 PM
I wonder why not others brand name use the adjustable valve for control over sound. Then customer can make whatever they like.
Just idea only
Attachment 87649
Just idea only
Attachment 87649
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Originally Posted by dbae1978' post='982939' date='Aug 20 2009, 12:28 PM
the valve would cause a restriction in exhaust flow, creating a reduction of power. Since RPi believes in creating maximum power, the valve would be contrary to what they believe in. This is a great option for members who want the power but don't want the awesome sound!
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From: San Jose, CA
My Ride: E60 M5, F85 X5M
Originally Posted by dbae1978' post='982939' date='Aug 19 2009, 09:28 PM
the valve would cause a restriction in exhaust flow, creating a reduction of power. Since RPi believes in creating maximum power, the valve would be contrary to what they believe in. This is a great option for members who want the power but don't want the awesome sound!
Then again, the valve is also there to limit sound output to satisfy regulatory requirements.
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From: San Antonio, TX
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I'm very intrested in this. Will this work in my tips? I have 3.5inch tips, the sound is a bit too loud, I'd like to do something cheaper than adding dual resonators.
