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Due to popular demand and requests made, this write up may be of some use to people on here that are constantly asking about the EK4 and EK9.
Please bare in mind i am comparing a UKDM EK4 and it is largely opinion based with facts included.
I have owned both and up untill this point my EK4 had £10k put into it and my EK9 is standard.
I will cover a few areas in here
Handling
B16a2 VS B16b VS B18c
Stats
Handling
This for me is the crytical point of the EK9 visually they look the same untill you look further into the chassis you notice much more R and D.
The EK9 boasts
Seam welded chassis
Stiffening brace under the chassis near the rear ARB
Stiffening bars behind the bumpers
A 22mm Rear ARB vs a 13mm on EK4
Better Shocks and springs
Limited Slip Differential
Lighter windscreen
I'm sure there is more but these are just my observations.
What amazes me further is the massive difference in weight between the EK9 and EK4 yet the EK9 has more weight added in terms of braces, seam welding etc etc. Yes a EK4 has a sunroof but that only weighs approx 16kgs! And the sound deadening approx 11kgs... Where is the other 144kgs? Incredible...
As soon as you sit behind the wheel of both you will notice the difference in steering. The steering is very different on a EK9 it feels heavy almost like there is no powersteering but gives so much more feedback than the EK4 ever did, it was to light in my opinion and always made me consider removing the powersteering.
In terms of driving there is no comparison a standard EK4 feels heavy and slugish and rolls badley in corners. The rear wheels never followed the front wheels and it would understeer all the time. Upon exiting the corner you would have to wait until you had exited before applying full throttle. Even when i had put a B18c in and fitted coilovers, camber correctors, EK9 rear arb with asr brace, tower braces, strut braces, roll cage, had a fast road setup done, and stripped over 200kgs from the car it was still not a touch on my EK9. It was better and it handled well don't get me wrong but how can i beat a company like Honda that have developed an EK9 for track? Its amazing how the EK9 a front wheel drive car feels like a rear wheel drive and does not understeer... INCREDIBLE
You can get on the power so early and the LSD just pulls you arround the corner the suspension is so great it is actually making me debate wether or not to fit my coilovers in fear of ruining the handling.... 
B16a2 VS B16b VS B18c
The engines are great all of them. The little B16a2 pulls very well and i still feel it had more lower torque than the B16b particularly arround 3.5k to 5k however when the B16b comes on cam it is completely different to the B16a2. It pulls very hard and very strong all the way to the limiter similar to the B18c and is actually making me consider not putting the B18c in... The B18c pulls very strongly right from the word go but you never really feel like your thrashing it especially not on the road. The all or nothing power from the B16b makes it a very nice experience. Calm and collected driving below 5k then mental when WOT on cam. But i do miss the lack of torque from the B18c it was definitly faster.
Stats
Standard spec for Honda Civic VTI EK4
Engine Size – 1595cc
Cylinders – 4
0-60 mph – 7.9 secs
Power Output – 157 bhp
Torque - 151 Nm
Top Speed – 129 mph
Weight – 1260 kg
Standard spec for Honda Civic Type R EK9
Engine Size – 1595cc
Cylinders - 4
0-60 - 6.7 sec
Power Output - 185 bhp
Torque - 158 Nm
Top speed - 144 mph
Weight: 1090 kg
Spec for Honda Civic Type R EK9 (B18c)
Engine - 1797 cc
Cylinders - 4
Power - 195 bhp
Torque - 178 Nm
0-60 - 6.7 sec
Top speed: 144 mph
Weight: 1090 kg
I hope this is usefull i will update as and when neccesary, when i remember more and as the EK9 developes through its modifiying.
Not to drastically though
Please bare in mind i am comparing a UKDM EK4 and it is largely opinion based with facts included.
I have owned both and up untill this point my EK4 had £10k put into it and my EK9 is standard.
I will cover a few areas in here
Handling
B16a2 VS B16b VS B18c
Stats
Handling
This for me is the crytical point of the EK9 visually they look the same untill you look further into the chassis you notice much more R and D.
The EK9 boasts
Seam welded chassis
Stiffening brace under the chassis near the rear ARB
Stiffening bars behind the bumpers
A 22mm Rear ARB vs a 13mm on EK4
Better Shocks and springs
Limited Slip Differential
Lighter windscreen
I'm sure there is more but these are just my observations.
What amazes me further is the massive difference in weight between the EK9 and EK4 yet the EK9 has more weight added in terms of braces, seam welding etc etc. Yes a EK4 has a sunroof but that only weighs approx 16kgs! And the sound deadening approx 11kgs... Where is the other 144kgs? Incredible...
As soon as you sit behind the wheel of both you will notice the difference in steering. The steering is very different on a EK9 it feels heavy almost like there is no powersteering but gives so much more feedback than the EK4 ever did, it was to light in my opinion and always made me consider removing the powersteering.
In terms of driving there is no comparison a standard EK4 feels heavy and slugish and rolls badley in corners. The rear wheels never followed the front wheels and it would understeer all the time. Upon exiting the corner you would have to wait until you had exited before applying full throttle. Even when i had put a B18c in and fitted coilovers, camber correctors, EK9 rear arb with asr brace, tower braces, strut braces, roll cage, had a fast road setup done, and stripped over 200kgs from the car it was still not a touch on my EK9. It was better and it handled well don't get me wrong but how can i beat a company like Honda that have developed an EK9 for track? Its amazing how the EK9 a front wheel drive car feels like a rear wheel drive and does not understeer... INCREDIBLE
You can get on the power so early and the LSD just pulls you arround the corner the suspension is so great it is actually making me debate wether or not to fit my coilovers in fear of ruining the handling.... B16a2 VS B16b VS B18c
The engines are great all of them. The little B16a2 pulls very well and i still feel it had more lower torque than the B16b particularly arround 3.5k to 5k however when the B16b comes on cam it is completely different to the B16a2. It pulls very hard and very strong all the way to the limiter similar to the B18c and is actually making me consider not putting the B18c in... The B18c pulls very strongly right from the word go but you never really feel like your thrashing it especially not on the road. The all or nothing power from the B16b makes it a very nice experience. Calm and collected driving below 5k then mental when WOT on cam. But i do miss the lack of torque from the B18c it was definitly faster.
Stats
Standard spec for Honda Civic VTI EK4
Engine Size – 1595cc
Cylinders – 4
0-60 mph – 7.9 secs
Power Output – 157 bhp
Torque - 151 Nm
Top Speed – 129 mph
Weight – 1260 kg
Standard spec for Honda Civic Type R EK9
Engine Size – 1595cc
Cylinders - 4
0-60 - 6.7 sec
Power Output - 185 bhp
Torque - 158 Nm
Top speed - 144 mph
Weight: 1090 kg
Spec for Honda Civic Type R EK9 (B18c)
Engine - 1797 cc
Cylinders - 4
Power - 195 bhp
Torque - 178 Nm
0-60 - 6.7 sec
Top speed: 144 mph
Weight: 1090 kg
I hope this is usefull i will update as and when neccesary, when i remember more and as the EK9 developes through its modifiying.
Not to drastically though
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