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My i20N

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YNWaN

YNWaN

Well-Known Member
Nthusiast
Sep 22, 2021
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UK
New exhaust for my i20N

My new exhaust has just been delivered from RPM Performance. It’s a full 3” system in stainless steel including a racing CAT and resonated GPF delete. It also has custom heat shielding and forged CF exhaust tips. Fitting is booked for the 21st….
Oh, I’ve also bought some Powerflex hanger bushes to help keep everything in place.

RPM have done a little Instagram video of it!



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Awesome. I'm hanging out to see some after-install clips.

...and of course, i'm sure everyone wants to know the price this runs at.
 
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6ixxer said:
Awesome. I'm hanging out to see some after-install clips.

...and of course, i'm sure everyone wants to know the price this runs at.
Click to expand...

Well the price is a bit complex in that I bought the exhaust during the Christmas 20% off Christmas sale that RPM had. Then I added the custom heat shielding which pretty much negated the previous discount. So, long story short, it cost me pretty much what the RPM price list says - but without the heat shielding (this was done by a specialist company called Immico).
 
On the topic of reversability, are the flanges for the GPF delete supposed to be in the same place as on the stock exhaust?

ie: could you pop the factory GPF back in if you needed to pass an inspection where they might want the OEM part in there? and by extension, could you put the OEM GPF back system on it if it needed to clear a sound level issue?

These are some of my main concerns about getting a system done locally by shops less experienced with i20n and potentially hacking apart the stock system and not allowing it to be reused, etc.
 
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I believe they are and it is possible to buy individual sections and fit those without altering the others. However, in this case we are looking at the entire exhaust from turbo back. In this case I felt that if I was going to change the exhaust I wanted to do a complete job and to do that I really wanted a company that could provide a single complete system - hence I chose RPM.
The people I am using to do the fitting are a local one well versed in the tuning of performance cars and the fitting of such parts* (although they normally work on Porsche and the like, they are happy to work on my Hyundai). In fact they fitted the big brake kit I also have. I do agree that this isn’t the sort of thing I would take just anywhere to be fitted.

* Initially I intended to let RPM do the fitting but they are just a bit too far from me and the cost of travel and accommodation would have added up rather.
 
As far as performance concerns, i think you could achieve better results using a bluespark or dte systems. For my taste the above combo is pretty loud and if you make short journeys, it will make you tired pretty easily
 
YNWaN said:
I’ve already got a DTUK (DTE) Tuning box.
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Nice!! In that case i will tell you a "secret". if you have more mods like intake, etc, and you are close to 240 ps and 37 kgs of torgue, you wont be able to gain more, because ecu has a "cut" close to those numbers as not to strein the mooving parts.
 
As the ECU code hasn’t yet been cracked how do you know it has a ‘cut’? I do also have an induction kit (ITG).
 
YNWaN said:
As the ECU code hasn’t yet been cracked how do you know it has a ‘cut’? I do also have an induction kit (ITG).
Click to expand...
we have done extensive testing and test the dtuk box with some mods like itg intake - pipercross intake, dpf delete, rpm downpipe, and many types of tuning parts. No matter the configuration, when we reached the bespoken power figures, car did not gain anything. THUS aN ECU cut exists, so as to protect the connecting rods.
Check from 8:00 to see the rpm downpipe
 
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gpaaa said:
we have done extensive testing and test the dtuk box with some mods like itg intake - pipercross intake, dpf delete, rpm downpipe, and many types of tuning parts. No matter the configuration, when we reached the bespoken power figures, car did not gain anything. THUS aN ECU cut exists, so as to protect the connecting rods.
Check from 8:00 to see the rpm downpipe
Click to expand...

Many thanks for both your comments and also the linked video. In particular the video was very interesting and I’m glad that this one had subtitles 👍. Having said that, there’s not a lot I can do with this information as I have the exhaust now and it’s definitely going to be fitted.
 
YNWaN said:
Many thanks for both your comments and also the linked video. In particular the video was very interesting and I’m glad that this one had subtitles 👍. Having said that, there’s not a lot I can do with this information as I have the exhaust now and it’s definitely going to be fitted.
Click to expand...
I am sure you will enjoy it :) I20n is a real beast but the main problem is to crack the Ecu.
When you fit it, keep us informed :)
 
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gpaaa said:
I am sure you will enjoy it :) I20n is a real beast but the main problem is to crack the Ecu.
When you fit it, keep us informed :)
Click to expand...

Thank you, I will 👍. Do you think the ECU ever will be cracked - are those who are able to do it sufficiently motivated?
 
YNWaN said:
Thank you, I will 👍. Do you think the ECU ever will be cracked - are those who are able to do it sufficiently motivated?
Click to expand...
i20N ecu was not intented to be cracked easily and it has many many new safety features, as to make the car bulletproof, even when we use it on track, or when we abuse it all the time on the roads. Motor is extremely capable, and turbo is bigger, so it can easily reach 250 ps, only with intake, gpf delete and ECu tunning. Imagine that on top, turbo pressure is 0,8 bar. If we could increase the pressure to 1,2 on top, which is pretty safe with only intake and exhause power would climb to more than 250 ps.
From the other hand, as i enjoy car on twisty b-roads, increasing the torgue close to 38-40 Newton meters specially between 3000-4000 pms would make the car not enjoyable on tight turns and the perfect torsen differential would have problems to pass the power to the ground without underesteering.
 
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gpaaa said:
i20N ecu was not intented to be cracked easily and it has many many new safety features, as to make the car bulletproof, even when we use it on track, or when we abuse it all the time on the roads. Motor is extremely capable, and turbo is bigger, so it can easily reach 250 ps, only with intake, gpf delete and ECu tunning. Imagine that on top, turbo pressure is 0,8 bar. If we could increase the pressure to 1,2 on top, which is pretty safe with only intake and exhause power would climb to more than 250 ps.
From the other hand, as i enjoy car on twisty b-roads, increasing the torgue close to 38-40 Newton meters specially between 3000-4000 pms would make the car not enjoyable on tight turns and the perfect torsen differential would have problems to pass the power to the ground without underesteering.
Click to expand...

Very interesting comment and good points 👍. I can see what you are saying about increased torque. With the mods I have now it is already easy to spin the wheels and an increase in torque would not be beneficial.

Now that the car has been discontinued in Europe I wonder how much interest the tuning community will have with regard to cracking the ECU code as relatively few i20Ns have been manufactured in the short span of time it was produced.

I tried to watch the latest Car Jackals video yesterday but without subtitles I really struggled to understand what was going on.
 
YNWaN said:
Very interesting comment and good points 👍. I can see what you are saying about increased torque. With the mods I have now it is already easy to spin the wheels and an increase in torque would not be beneficial.

Now that the car has been discontinued in Europe I wonder how much interest the tuning community will have with regard to cracking the ECU code as relatively few i20Ns have been manufactured in the short span of time it was produced.

I tried to watch the latest Car Jackals video yesterday but without subtitles I really struggled to understand what was g
Click to expand...
Nothing serious, just a greek exhaust construction to burn the unburned fumes at the last part of the exhaust (Backbox) which creates flames.
 
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Well I’ve now had my exhaust fitted but it turned out to be a bit of a turbulent experience. Because RPM Performance are quite a long way from me I took the decision to have the exhaust fitted by a local tuning company who have a very good reputation. However, I wasn’t very impressed by the fit they achieved - alignment wasn‘t very good and the engine management light came on as I drove home. So, after speaking with Dan, the owner of RPM, I made the trip to visit him. despite the nearly 7 hour round trip it turned out to be well worth it as Dan was fantastic and took a great deal of care refitting the exhaust correctly. It now fits properly and the engine management light has gone out - it also sounds better than before!
 
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YNWaN said:
Well I’ve now had my exhaust fitted but it turned out to be a bit of a turbulent experience. Because RPM Performance are quite a long way from me I took the decision to have the exhaust fitted by a local tuning company who have a very good reputation. However, I wasn’t very impressed by the fit they achieved - alignment wasn‘t very good and the engine management light came on as I drove home. So, after speaking with Dan, the owner of RPM, I made the trip to visit him. despite the nearly 7 hour round trip it turned out to be well worth it as Dan was fantastic and took a great deal of care refitting the exhaust correctly. It now fits properly and the engine management light has gone out - it also sounds better than beforpr
Click to expand...

YNWaN said:
Well I’ve now had my exhaust fitted but it turned out to be a bit of a turbulent experience. Because RPM Performance are quite a long way from me I took the decision to have the exhaust fitted by a local tuning company who have a very good reputation. However, I wasn’t very impressed by the fit they achieved - alignment wasn‘t very good and the engine management light came on as I drove home. So, after speaking with Dan, the owner of RPM, I made the trip to visit him. despite the nearly 7 hour round trip it turned out to be well worth it as Dan was fantastic and took a great deal of care refitting the exhaust correctly. It now fits properly and the engine management light has gone out - it also sounds better than before!
Click to expand...
Proper fit is very important for everything!! Enjoy the new exhaust :)
 
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