Well i've just bought my own ek9 b-pipe so i'm going to measure everything correctly so i know the right diamensions once and for all.I've asked several different people who had this exhaust and they all give different answers :roll: Seems to be pretty hard taking a dial caliper and measuring the i...

Got one laying around, will check this weekend. From what I remember the triangle stands out a few mm from normal dimensions. Either put a bigger flange on the midpipe, cut out the original flange or use very tiny and vulnerable bolts... this is why some aftermarket triangles don't have round holes...

Allright, i've orderd a OEM EK9 exhaust system (cat to back) Delivery time about 2-3 weeks. Keep you guys updated!

Allright, i can get my hands on a D14A3 head. I know that there are lots of performance possibilities with the head but what are the options?

So D14A3 head:

- Porting?
- Valves & springs?
- Cams?
- Etc..

MM oke thnx Nick for the info. I've got the Buddyclub Pro spec from Rising Sun Performance in the Netherlands. So sorry not from Belgium ;) So the flange of a EK9 exhaust has no restriction towards the midpipe. Thats great to hear! Maybe I'm going to order the EK9 catback this weekend. I have to sle...

I've short circuited the RACV with a hose and 2 clamps. (BETEK : What is your setup ? Where did you connect the RACV ?) Also, I bolted the last IM bolt (painful, but done :D). All hoses are well fitted / clamped. Then I started it, idle at 1800rpm, all normal. Then it begin to warm and the rpm drop...

as far as i know the ek9 resonators are more advanced and oriented to performance in contrast to other oem honda ones. Still I would bet that the buddy club is more for performance, the question is how much more. Exhaust diameters play also significant role. Exhaust diameter of the BC is 2,5'' EK9 ...

Hi, I've juste done the IM swap on my EJ9 with a D16Z6 IM... - I did not find a way to bolt the 12mm bolt under the middle of the IM (I'll fix that tomorrow, maybe I'll drill a bigger hole in the center of theIM) - When I first strated it : no error code (yihaa :D), idle at 2000rpm, very stable ! -...

Nice topic!

I'm planning to buy an EK9 catback for my car. On this moment i have a BuddyClub Pro Spec but, its a little to loud for an 1.4 i think.

But how is the performance BC vs. EK9?

Does anyone knows the diameter of a stock EK4 exhaust, midpipe?