Quiet decats

[teejay]

Probably a daft question but what is the quietest HFC/DECAT  to go with a ark grip exhaust

[reeceybeaney]

Motordyne ART Pipes

 

Got them on my 350z with a cobra resonated system and really opened the car up  rumoured quieter than HFC. 

Expensive... But worth it IMHO

 

[nissanman312]

On 22/09/2018 at 20:39, reeceybeaney said:

Motordyne ART Pipes

 

Got them on my 350z with a cobra resonated system and really opened the car up  rumoured quieter than HFC. 

Expensive... But worth it IMHO

 

I tested my invidia with De cats next to my pals hr with invidia and art pipes with a decibel meter.

There was 1/2deibles in it 

However the art pipes give a deaper tone and less drone on the road 

Just depends what you want to spend 

(Both cars supercharged as well so very close comparison)

Edited September 23, 2018 by nissanman312

[jollyranchers]

On 22/09/2018 at 20:32, teejay said:

Probably a daft question but what is the quietest HFC/DECAT  to go with a ark grip exhaust

There is none

 

Its all subjective but the fact you are asking this question then I can tell you HFC with your grip will be too loud for you 

 

I have had them on my Gemini and as nice as they were they were too loud on initial Cold start and WOT under certain circumstances

 

If you want the gains of the HFC without the noise then stick with the stock system with HFC

Edited September 25, 2018 by jollyranchers

[colesl4w]

I've heard from others that the Ark Grip + HFC / Decats are way too loud and ruin the sound of the system. I've an Ark Grip myself and wouldn't consider adding them.

[Payco]

I run the ARK Grip on my Nismo and that alone to me is the perfect note.

[colesl4w]

Whoops, just noticed this is the 370z sub - my answer previously applies to the 350z.

[dave_7]

its all very subjective. I've had an arc grip fitted for a couple of weeks which replaced my cobra cat back (will be going in the for sale section when i get round to it), and too be honest I've found the arc a bit too tame coming from the cobra, which sounded great but i think would be very loud with HFCs. 

 

I've since picked up a set off second hand berk HFCs off ebay for a steal to try, ill let you know my opinion on them.

 

Point is there is not one setup to suit everyone which makes it very tricky.

[teejay]

So are the art pipes less noisy than the rest and what makes them so more expensive

[jollyranchers]

heard mixed reports if they are quieter or not , I did consider them but the smell from the car for some is an issue

 

HFC still whiff more than the standard cats , with the art pipes its another consideration as well as the noise 

 

You would also have to swap them MOT time

[Bikeracer]

On 26/09/2018 at 13:33, dave_7 said:

its all very subjective. I've had an arc grip fitted for a couple of weeks which replaced my cobra cat back (will be going in the for sale section when i get round to it), and too be honest I've found the arc a bit too tame coming from the cobra, which sounded great but i think would be very loud with HFCs. 

 

I've since picked up a set off second hand berk HFCs off ebay for a steal to try, ill let you know my opinion on them.

 

Point is there is not one setup to suit everyone which makes it very tricky.

I’ve got a Cobra catback system along with test pipes on my Supercharged Nismo and it is extremely noisy, especially between 4000-5000RPM

 

Not sure why people talk about the smell as the system on mine smells no different to a standard Nismo.

 

Thinking of possible modifying the rear box or fitting Motordyne Ark test pipes to reduce the noise levels.

Edited September 28, 2018 by Bikeracer

[dave_7]

On 28/09/2018 at 21:48, Bikeracer said:

I’ve got a Cobra catback system along with test pipes on my Supercharged Nismo and it is extremely noisy, especially between 4000-5000RPM

 

Not sure why people talk about the smell as the system on mine smells no different to a standard Nismo.

 

Thinking of possible modifying the rear box or fitting Motordyne Ark test pipes to reduce the noise levels.

I bet that sounds absolutely savage! 

[nissanman312]

1 hour ago, dave_7 said:

I bet that sounds absolutely savage! 

I used to have that set up it was nasty in a bad way 

It's was much nicer once I went with the invidia but now that seems loud 

Maybe I'm just getting older