Cool! Glad to hear your positive comment on the GruppeM. I have bought one too, just waiting for shipping. And I'm running same set up with you (stock header + Mugen twin loop) on my ep3. Can't wait them to arrive my door!!!
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^ well done dude, i think u gona love the set up... haha
Hey guys. Sorry for reviving old thread, I didnt want to start a new thread. Just wondering if anyone elses gruppe m intake makes a funny noise like a fake turbo whistle. I didnt install the intake as i bought it with one. The noise does my head in sometimes. It only happens when I accelerate. Can someOne help me?
Thats the noise from the gruppm
More likely a slight crack in intake pipe , or gap in pod filter or gap some where that unfiltered air is sucking thru.
Check the hose clamps on the intake arm and the gruppe m intake and pod itself.
I have a gruppe m on a ep3 and no such noise. Actually it's a very subtle deep
Tone until vtec in which it makes a nice brassy note
Thats what i was thinking too. Maybe theres a leak in the pipe or somewhere. Will take it apart this weekend to check it out