turbo lover
Senior Member
- Joined
- Apr 7, 2016
- Threads
- 17
- Messages
- 645
- Reaction score
- 348
- Location
- Canada
- Vehicle(s)
- Civic Hatchback Sport Touring
I have the Greddy Supreme SP (10158212) with a PRL catted downpipe and it's louder than I'd like on the highway.I have also installed a Greddy catback to my 2018 sport and i have a prl catted dp and fp to this and the drone in 6th from 2500rpm until you reach 3000rpm is deafening! I have to keep at 3k to stop the droning its really bad! But before i installed it i had noticed the front piece of the centre pipe was 2" hole that opened to 3" all the way to the back box. So because of this i am 3"dp 3" fp 2"-3"centre 3"mid pipe then back box. So there is a bottle neck effect now with my system and im starting to think this causes the drone. Does anyone else have this set up?
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