[rooster82a]

Hi Guys,

Iam new to this forum and a recent new owner of an59 plate FN2 in Dundee.

I have seen various exhausts for sale on flea bay etc and require some subjective info in relation to the various brands.

1. Scorpion
2. Cobra
3. Miltek
4. Blue flame
5. Piper
6. any other types

My question is iam looking for something to provide a power gain on a stock car for the minute, to be RR at some stage via a reflash hondata. Although the car is standard at the minute it will run a group N prior to mapping which may be a while away yet.

Iam looking for something which is reasonably quiet for work and motorway driving yet gives a nice potent burble/growl when the pedal is floored.

I dont have an exceptional amount of dosh at the minute, £400-500.

Iam also looking for a decent filter that wont be affected by running stock with an exhaust yet capable of being sufficient when the cars tuned. Are there any less prone to sucking in hot air???

Thanks in advance for any comments.....Ricky

 

[DPG87]

Go to Willie at Meercat mate, I'll refer you and get you a good deal, pm me of you want more details, much cheaper than any pre made one and you can choose what design, noise, note etc you want

 

[nunoctr]

you can buy a 63,5 center section:

TSS Sportmittelschallldämpfer Honda Civic Typ R FN2 | eBay

and then buy a final muffler to the spec you want (small, big, one exit, etc) for your needs.

that is what i am using and with good results.

tss center section + one exit 63,5 straight-through final muffler (big - for drone free)

 

[DPG87]

^^ nuno why is the mid section not straight?

 

[nunoctr]

not straight?

it's the same design as stock (it fits 100%).

i think it's the same design as the others. see the j's:

 

[onweed]

Would a 3" be benificial on a non boosted car? Or is 2.5" the best?

 

[owen243]

Quick question.

Does replacing the exhaust have any effect on the MOT ? Ive read on various threads some people with an exhaust or a cat back (not too sure bit n00b here) that they're not passing MOT.

Im buying a fn2 just after crimbo

Thanks in advance for any replies

Sent from my Galaxy Nexus using Tapatalk

 

[nunoctr]

Quick question.

Does replacing the exhaust have any effect on the MOT ? Ive read on various threads some people with an exhaust or a cat back (not too sure bit n00b here) that they're not passing MOT.

Im buying a fn2 just after crimbo

Thanks in advance for any replies

Sent from my Galaxy Nexus using Tapatalk

car have cat when homologation was made. Only cars with cat are homologated.
So, no cat = ilegal = fail MOT

different catback are no reason for MOT fail i think. but i am not in the uk!

 

[nunoctr]

Would a 3" be benificial on a non boosted car? Or is 2.5" the best?

americans = 3"

europeans = 2,5"

use 2,5", is good to 250HP.

 

[onweed]

americans = 3"

europeans = 2,5"

use 2,5", is good to 250HP.

Yea I know... but will 3" still work fine? I mean will 2.5" produce more power than a 3" or does it not really matter?

 

[Guitaralmond]

Out of all the ones you mentioned the milltek is the best, good sound and quality. I have a Martelius exhaust which isn't for the faint hearted as its very loud, although its widely agreed that it's the best sounding exhaust by everyone that's heard it. Both are within your price range.

Search for videos of them on YouTube and decide for yourself

 

[nunoctr]

Yea I know... but will 3" still work fine? I mean will 2.5" produce more power than a 3" or does it not really matter?

probably 3" have more top power, 2,5" more low/mid. But depends on the other mods. But 3" will work fine.

 

[DPG87]

2.5" is plenty even on a FI CTR

Nuno - was just asking as the bend in the mid section...I don't have that on my custom one that's all

Custom is the way to go, I've got plenty of compliments for mines, lads at TDI North certainly liked it

 

[jeev]

Have look at Magnaflow..

 

[nunoctr]

Custom is the way to go

x2

 

[nunoctr]

Have look at Magnaflow..

Nice. a bit loud.

 

[DPG87]

Not the best video but...

YouTube - Broadcast Yourself.

 

[Pottsy]

Yea I know... but will 3" still work fine? I mean will 2.5" produce more power than a 3" or does it not really matter?

If the exhaust is tuned, then it matters. If it is not tuned, then it makes no difference.

If it is tuned, approx figures for the FN2 are:

For tuned rpm 6500 (good road spec):
Primary length 26"
ID primary 1.7"
ID secondary 2.3"
ID tailpipe 2.3"

For tuned rpm 7500 (good race spec):
Primary length 22"
ID primary 1.9"
ID secondary 2.4"
ID tailpipe 2.5"

Tailpipe length should be in multiples of the primary length +3. The tailpipe ends at the start of the silencer.

Primary length is the length from flange to beginning of 4 into 1 collector, or in the case of a 4-2-1 the total length of the 4 and 2 parts. Secondary ID is the ID of the 2 part pipes.

However, I have yet to see an FN2 aftermarket system that is a proper tuned race system, because they all have the bodge-style collectors*. The bad way to do it is to bend the pipes and have them facing together:

The good way is to have a proper tapered collector:

(2 random photos found using Google).

* Correct me if I'm wrong!

 

[culasse]

IMO when you`re after some extra power just install Hondata flashpro and a race manifold, but keep the stock catback. It`s really good and quiet for daily driving.

 

[onweed]

If the exhaust is tuned, then it matters. If it is not tuned, then it makes no difference.

If it is tuned, approx figures for the FN2 are:

For tuned rpm 6500 (good road spec):
Primary length 26"
ID primary 1.7"
ID secondary 2.3"
ID tailpipe 2.3"

For tuned rpm 7500 (good race spec):
Primary length 22"
ID primary 1.9"
ID secondary 2.4"
ID tailpipe 2.5"

Tailpipe length should be in multiples of the primary length +3. The tailpipe ends at the start of the silencer.

Primary length is the length from flange to beginning of 4 into 1 collector, or in the case of a 4-2-1 the total length of the 4 and 2 parts. Secondary ID is the ID of the 2 part pipes.

However, I have yet to see an FN2 aftermarket system that is a proper tuned race system, because they all have the bodge-style collectors*. The bad way to do it is to bend the pipes and have them facing together:

View attachment 63069

The good way is to have a proper tapered collector:

View attachment 63068

(2 random photos found using Google).

* Correct me if I'm wrong!

So the bigger the ID the higher the rev range the power comes in? Was just wondering because 3" exhaust do sound proper badass

Not that I tend on getting one I was just curious as if to a 3" giving the same gains as a 2.5".