desperate for cat back system on type r

[stewie732]

basically i want more grunt, asap. theres a place near me that does powerflow gear and he will do cat back and fitting in 4hrs for around 360 in total?

whats your thoughts on doing this? obviously it will kill warranty as its an 06 plate, but people say they never die...

[PJ S]

Take it you're referring to the FN2 CTR?
If like the 2.4 Accord, the exhaust isn't that restrictive, and any gains seen without the manifold, CAT, and airbox/filter will be minimal (5 bhp?)
If you seriously want more grunt - flog it and chuck a bit more money at the FD2. Okay, it's 4 door and saloon - but with 235-240 under the bonnet, you'll not be exactly found wanting compared to what you have now.

[stewie732]

thats not the car i have. its the 06 3 door civic type r premier edition.

Edited by stewie732 on Wednesday 26th March 22:59

Edited by stewie732 on Wednesday 26th March 23:00

[MrFlibbles]

stewie732 said:

thats not the car i have. its the 06 3 door civic type r premier edition.

Edited by stewie732 on Wednesday 26th March 22:59

Edited by stewie732 on Wednesday 26th March 23:00

I think he was suggesting the best way to get morepower would be to flog the car and replace it with the 5 door JDM (i think?)

Its doubtful that an exhuast will make you any more power, in truth you may even lose some - however, the way the VTEC sounds @ 9k rpm more than makes up for it in my eyes.


If it were me, I'd steer clear of powerflow, spend a bit more and get a decent system from a more reputable jap tuner.

[PJ S]

Now that you've actually made reference to WHICH Type R Honda you have (there were/are a number to choose from!), it helps.
Okay, so you want more power from the EP3 - TODA would be one that springs to mind. But then again, it ain't £350 - nearer to £800, iirc.
As above, no point swapping just the exhaust after the CAT - you really need to get the airflow from in to out sorted as a complete system rather than a bit here, and a bit there.
There's been plenty of K20A3 tuning done - worth checking out civictype-r.co.uk forum for more info, or even type-r-owners.co.uk.
Those owners, some who've jumped onto the FD2 (JDM CTR) bandwagon, have been there and done it, so they'd be best qualified to answer queries over which exhausts work and which ones make no difference other than noise.
Milltek is another name I've seen bandied about on those forums, so they may be worth contacting.

Edited by PJ S on Thursday 27th March 00:21

[stewie732]

PJ S said:

Now that you've actually made reference to WHICH Type R Honda you have (there were/are a number to choose from!), it helps.
Okay, so you want more power from the EP3 - TODA would be one that springs to mind. But then again, it ain't £350 - nearer to £800, iirc.
As above, no point swapping just the exhaust after the CAT - you really need to get the airflow from in to out sorted as a complete system rather than a bit here, and a bit there.
There's been plenty of K20A3 tuning done - worth checking out civictype-r.co.uk forum for more info, or even type-r-owners.co.uk.
Those owners, some who've jumped onto the FD2 (JDM CTR) bandwagon, have been there and done it, so they'd be best qualified to answer queries over which exhausts work and which ones make no difference other than noise.
Milltek is another name I've seen bandied about on those forums, so they may be worth contacting.

Edited by PJ S on Thursday 27th March 00:21

I presume you dont know what the 06 models came with? If I change cat or take it out, it will activate the ecu light. so il need to electronically fixed/mapped.

[stewie732]

MrFlibbles said:

stewie732 said:

thats not the car i have. its the 06 3 door civic type r premier edition.

Edited by stewie732 on Wednesday 26th March 22:59

Edited by stewie732 on Wednesday 26th March 23:00

I think he was suggesting the best way to get morepower would be to flog the car and replace it with the 5 door JDM (i think?)

Its doubtful that an exhuast will make you any more power, in truth you may even lose some - however, the way the VTEC sounds @ 9k rpm more than makes up for it in my eyes.


If it were me, I'd steer clear of powerflow, spend a bit more and get a decent system from a more reputable jap tuner.

why will it loose power? 3 separate exhaust specialists have told me otherwise.

[MrFlibbles]

stewie732 said:

MrFlibbles said:

stewie732 said:

thats not the car i have. its the 06 3 door civic type r premier edition.

Edited by stewie732 on Wednesday 26th March 22:59

Edited by stewie732 on Wednesday 26th March 23:00

I think he was suggesting the best way to get morepower would be to flog the car and replace it with the 5 door JDM (i think?)

Its doubtful that an exhuast will make you any more power, in truth you may even lose some - however, the way the VTEC sounds @ 9k rpm more than makes up for it in my eyes.


If it were me, I'd steer clear of powerflow, spend a bit more and get a decent system from a more reputable jap tuner.

why will it loose power? 3 separate exhaust specialists have told me otherwise.

Well they would say that wouldnt they? (I didnt day it WOULD lose power, I said it MAY lose power).

Either way I doubt it'll beany discernable either way.

[10 Pence Short]

The restrictive part of the exhaust system is before the cat, not after it. All you'll get with a loud catback is lots of attention from people you don't want it from and a headache.

Put simply, you're never going to make decent increases in power without spending lots and lots and lots of money. At the end of the day, if that's what you're after, you might as start with something turbocharged in the first place.

[PJ S]

stewie732 said:

I presume you dont know what the 06 models came with? If I change cat or take it out, it will activate the ecu light. so il need to electronically fixed/mapped.

Nope! What you may find you need to prevent the light activating is a lengthening of the sensor plug-in metalwork.
It moves the sensor far enough away from the air stream, but doesn't prevent it functioning like it should.
Any good exhaust manufacturer building a hi-flow (300 cell or less) CAT would/should do that automatically.
Bear in mind that a good fast airflow on Hondas doesn't necessarily need a remap, since the factory runs the VTEC range quite quite rich - so a leaning out will generate more power, from what I've be led to believe.
But, like I said, the cost of doing the job properly, to make it worthwhile in the first instance, will likely set you back £2K with the manifold/CAT/airbox as well. Changing the gasket to a thinner one will raise compression, and power.

[stewie732]

2k?!

i dont want it that loud. the said they could make it just a tad louder so id hardly notice with around 10$ performance gain...

Edited by stewie732 on Friday 28th March 07:22

[Revs_Addiction]

Getting more power from a highly tuned n/a engine is never going to be cheap! Honda have got practially 100bhp/litre, (reliably), from the K20A2, which amazing for a mass produced hatchback.

PS - You won't get meaningful power increase from ANY cat-back exhaust. As others have said, choose the wrong one, and you'll actually lose power. If you choose wisely then you can get a fantastic soundrack, slightly sharper throttle, and a handful of bhp, but not 10 extra as the OEM isn't that bad.

Also the local powerflow franchise certainly don't know better than Honda, or the big JDM tuning companies that have invested heavily in R&D on the EP3 exhaust system.

[Manners]

stewie732 just sent you an email.

Have a similiar setup on my car a 05 premier.

Also have an AEM CAI fitted. In terms of warranty it still applies but only to the unmodified parts. I had for example an abs sensor replaced under warranty and the car is booked in for air con fault under warranty.

Edited by Manners on Friday 28th March 11:21

[marsdalebear]

stewie732 said:

2k?!

i dont want it that loud. the said they could make it just a tad louder so id hardly notice with around 10$ performance gain...

Edited by stewie732 on Friday 28th March 07:22

10% increase in HP just by bolting on a cat back? That would be 18-20 bhp increase then?

They are having a laugh!

The best you can expect from a VERY well sorted system is 5bhp.

Tell them to take before and after independant Dyno runs and if they can show 10% gain,then pay them.

[red_zed]

if you want a quicker car, id suggest you spend your 350quid on some suspension and/or brake upgrades.

Lots of sound advice on this thread. You wont get big gains on the K20 without spending big bucks.

Sell your rear seats for 50quid, lose a few kilos in the process and put the money towards some new disks, pads, and a fast road setup

[joesnow]

^ Yes what he said. Loose some weight, and concentrate on stopping and handling. Power tuning is an expensive game on Hondas, but if you must look at manifold, cat and induction.

Edited by joesnow on Friday 28th March 13:15

[stewie732]

MrFlibbles said:

stewie732 said:

MrFlibbles said:

stewie732 said:

thats not the car i have. its the 06 3 door civic type r premier edition.

Edited by stewie732 on Wednesday 26th March 22:59

Edited by stewie732 on Wednesday 26th March 23:00

I think he was suggesting the best way to get morepower would be to flog the car and replace it with the 5 door JDM (i think?)

Its doubtful that an exhuast will make you any more power, in truth you may even lose some - however, the way the VTEC sounds @ 9k rpm more than makes up for it in my eyes.


If it were me, I'd steer clear of powerflow, spend a bit more and get a decent system from a more reputable jap tuner.

why will it loose power? 3 separate exhaust specialists have told me otherwise.

Well they would say that wouldnt they? (I didnt day it WOULD lose power, I said it MAY lose power).

Either way I doubt it'll beany discernable either way.

was in a cat back type r today, felt alot faster than mine with induction kit and cat back. raped me in the dry and was spinning up to 90.

all under supervised strict conditions.

[stewie732]

red_zed said:

if you want a quicker car, id suggest you spend your 350quid on some suspension and/or brake upgrades.

Lots of sound advice on this thread. You wont get big gains on the K20 without spending big bucks.

Sell your rear seats for 50quid, lose a few kilos in the process and put the money towards some new disks, pads, and a fast road setup

much better idea. was thinking of some ebc's. a mechanic from honda is trying to sell me a brand new performance manifold system. what do u guys think of that? waste of dosh or not?

[stewie732]

joesnow said:

^ Yes what he said. Loose some weight, and concentrate on stopping and handling. Power tuning is an expensive game on Hondas, but if you must look at manifold, cat and induction.

Edited by joesnow on Friday 28th March 13:15

thanks for sound advice. im changing manifold on sunday ive told him. thinking of shelling out for a gruppe carbon air box and not sure weather to rip out the cat or not.

the poor car is only 20months old!

[Revs_Addiction]

stewie732 said:

joesnow said:

^ Yes what he said. Loose some weight, and concentrate on stopping and handling. Power tuning is an expensive game on Hondas, but if you must look at manifold, cat and induction.

Edited by joesnow on Friday 28th March 13:15

thanks for sound advice. im changing manifold on sunday ive told him. thinking of shelling out for a gruppe carbon air box and not sure weather to rip out the cat or not.

the poor car is only 20months old!

Be careful - Gruppe M and de-cat will make the car run too lean without Hondata or equivalent. You will get pre-detonation and likely engine damage if you don't sort the fuelling.