My Civic Ep3 Build

[JayzEp3]

Hi I'm sort of new only been on here a couple of months, I'm from braintree Essex.
Started modding my civic it's going to be slow as I'm saving for a wedding at the moment.
When I first got her.

Fitted a kode rear tow bar and Luke front row strap

Bought some uprated parts for a service

Then bought a scorpion Decat pipe

Then fitted a beaks rear bar

Started making a rear diffuser

Then ordered a brand new hks cat back system

Hoping to fit loads of carbon goodies, uprate the engine a bit more and maybe euro and give it a bit of stance.





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[Sam R]

Looking good with some nice progress, is your car mapped with you running a de cat?

 

[JayzEp3]

Looking good with some nice progress, is your car mapped with you running a de cat?

No not remapped


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[jimbothemagnificent]

Remap. Now.

 

[JayzEp3]

Remap. Now.

Why?


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[jimbothemagnificent]

The K20 is a very highly-strung engine. The engine management does not have the range of adjustment required to compensate for running decat. The engine will run lean, this will lead to higher temperatures and knocking. This will inextricably lead to searching for replacement engines on ebay.

 

[JayzEp3]

The K20 is a very highly-strung engine. The engine management does not have the range of adjustment required to compensate for running decat. The engine will run lean, this will lead to higher temperatures and knocking. This will inextricably lead to searching for replacement engines on ebay.

Will it be ok if I stick the cat back on


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[jimbothemagnificent]

Yes. You can go as far as intake and cat-back exhaust mods, but intake/exhaust manifold and decat will require ecu and mapping.

Don't risk it. You won't get any gains by running without a cat anyway, not on a K20.

 

[Loxy]

Don't risk it. You won't get any gains by running without a cat unmapped anyway, not on a K20.

Fixed.

 

[JayzEp3]

Yes. You can go as far as intake and cat-back exhaust mods, but intake/exhaust manifold and decat will require ecu and mapping.

Don't risk it. You won't get any gains by running without a cat anyway, not on a K20.

Ok no worries I'll get the cat back on Saturday


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[jimbothemagnificent]

I bow, as always, to the unimpeachable wisdom of Loxy. Thanks mate, that's what I meant.

There's gains to be had by remapping WITH a cat and staying legal. In my opinion it's not worth the trouble if you get caught without a cat.

 

[JayzEp3]

I bow, as always, to the unimpeachable wisdom of Loxy. Thanks mate, that's what I meant.

There's gains to be had by remapping WITH a cat and staying legal. In my opinion it's not worth the trouble if you get caught without a cat.

I'm not getting it remapped with the cat on, I want to uprate the intake manifold and exhaust manifold first then I'll go for a map


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[jimbothemagnificent]

We'll never condone illegal mods on here (public forum and whatnot) but for a track car; yes there are good gains to be made that way. However, you should remap the car immediately after fitting these parts to avoid potential damage.

 

[JayzEp3]

We'll never condone illegal mods on here (public forum and whatnot) but for a track car; yes there are good gains to be made that way. However, you should remap the car immediately after fitting these parts to avoid potential damage.

I've had almost a Decat on every single car ive had over the years and I've never been done or been pulled for it and with the hks exhaust on now it's really quiet and not loud but it's coming off Saturday and when I do get the bits I want it's getting mapped


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[Sam R]

It's the fact if you have a bad crash they inspect the car and see no cat, = bad times vosa also do random checks

 

[JayzEp3]

It's the fact if you have a bad crash they inspect the car and see no cat, = bad times vosa also do random checks

It's risky I know


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[JayzEp3]

Got the cat back on today

Now have a scorpion Decat for sale

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[Sam R]

If your getting the car mapped you may as well keep the de cat if you wanted

 

[JayzEp3]

If your getting the car mapped you may as well keep the de cat if you wanted

Well I'm thinking of banging a turbo on next year and the kit comes with downpipe etc so might as well wait really


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[JayzEp3]

Bit of a update,
Got some rear drilled and grooved disks mega cheap

Cleaned my k and n filter it was mega filthy

Then decided to strip the rear

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