Mazda2 de5fs Touge build

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List of mods:
1. HKS induction kit (Racing Suction:DEMIO)
2. HKS Silent High Power (silent Hi-Power:DEMIO)
3. Autoexe front strut bar (Increased Body Rigidity | AutoExe Mazda Tuning & Customization)
4. Endless MX72 Plus break pads (ENDLESS OFFICIAL WEB SITE)
5. K-sport street coilover (STREET |)
6. Camber bolts
7. Exedy stage 1 organic clutch (MT Sports - Stage 1 Organic | EXEDY Clutch Europe)

Wheel: Mazda wheel design 144. Size is 16" by 6.5" PCD 4x100

Tyers: running a square setup of 205/45/16
Fronts: Nankang NS2R
Rears: Falken ziex ze310

Relevant OEM performance extras:
1. Longer gear ratios (results in lower top speeds for each gear but faster acceleration)
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2. Bigger front breaks
3. The OEM suspension was stiffer than normal spec

The reason I am creating this thread is to spread information regarding the de5fs, to find other enthusiast of this chasse and to hopefully learn more since gathering information about anything regarding the Mazda 2 is not easy.

I have owned my car for around 2 years and have covered around 20k km. Most of those km have been very hard driving on windy roads. The car has for the most part giving me 0 issue, what I have replaced due to breaking are top engine mounts (still had original one and I blew it) and suspension (had the front left strut leaking) which where both mostly a result of my heavy driving. The car currently sits at 100k km and even after my driving style it still burns not a single drop of oil.

Currently I am running the stock tune so around 111hp and I have yet to have any issues with the gearbox, and I don't go easy on it.

These are some questions I have about this chasse that i have not been able to find any info:
1. How much power can the stock transmission handle?
2. How much power can the car handle, from the little information I found someone said at 160 crank hp a connecting road breaks
3. Has anyone fit a fiesta st rear subframe on the DE, this is to have rear disc breaks
4. Has anyone ever put ITB's on the ZY-VE

I ask these questions just out of curiosity as I don't plan to push more power than it has as I don't see a point. In the future I would like to possible play around with the engine as just a passion project since it's such a unknown platform that it would be interesting, but currently I am just a collage student and spending so much money on a mazda 2 is stupid.

I absolutely love this car and it has exceeded my expectations countless times. It drives great and is extremely fun driving it on the limit. It was a great first car to learn all the basics of racing in but now I am looking for a car that can take me to the next step. I wont sell my mazda 2, I love it to much.

If you have a mazda 2 DE and drive it hard I would love to hear your opinion on it as sadly I have yet to meet a mazda 2 owner that is a driving enthusiast.

Any questions regarding the DE you can say here and I will try to reply as I have done a large amount of research on everything regarding this chasse.
 
The three door DE is so nice looking; it's a shame we never saw these in the US.

The different transmission ratios are interesting. Your 5-speed gearing matches the US version (we only got the 1.5 engine), only the final drive ratio is different. That would be a sweet upgrade if I ever opened up the transmission to just swap the final drive to the 4.1.

I don't think rear disc upgrade is worthwhile. I know drums aren't sexy, but there's not a ton of weight overall, and being front drive, more of the weight is up front anyway. I've read of folks running in B-spec racing class, and I don't remember anyone complaining about being limited by stock rear braking power. Plenty of pad upgrades available for the front, and as with any car, make sure you have fresh, quality brake fluid.
 
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