Supercharged EP3 - Noise levels

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Hi all,

Just looking to get some advice please - I run a fully stripped out track setup rotrex supercharged EP3. I have a Gruppe M intake and a Solid Fabrications 3” super silent exhaust system installed.

During some track days last year, I was pulled up for noise exceeding limits (understandably!). In order to reduce noise from the car, do you think the fitting of a Fujitsubo 2.5” system would reduce noise levels appreciably without sacrificing too much power? I’ve had experience with the RM01a on previous cars and they were great.
Also, there will be some induction noise associated with the Gruppe M so that could be changed to reduce noise levels too.

Appreciate that I may lose power running a 2.5” system and may need to be remapped.

Any thoughts or advice would be greatly appreciated.

Thank you in advance guys!
 

Chris.

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It’s most likely the intake noise that’s flagging you, the Gruppe M is offensively loud.
 

Chris.

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Staff member
Administrator
Messages
52,169
I ran a GM on my NA DC5 and got black flagged at Brands. I switched it over to a Mugen I had with me and no more issues.
 
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