h&s 'centre' a decat or not?
19 September 2011, 11:21 AM
#1
Scooby Regular
Thread Starter
iTrader: (3)
Join Date: Aug 2006
Location: home
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
h&s 'centre' a decat or not?
Going through the history on my car that i've recently bought, invoice from Hayward & Scott reads
Now this exhaust is fookin loud and has got me wondering if the 'centre pipe' is a decat? a friend with a v5 sti has a back box only exhaust but the difference in noise and general throatyness is phenominal....any ideas?
To Supply 1x Jap Style backbox for a classic
To Supply 1x Centre pipe for a classic
To Supply 1x Centre pipe for a classic
19 September 2011, 12:58 PM
#3
Scooby Regular
iTrader: (4)
Join Date: Sep 2008
Location: Edinburgh
Posts: 276
Likes: 0
Received 0 Likes
on
0 Posts
Thought the standard centre pipe contains a silencer (resonator), not a cat.
Well it does on a newage, classic may be different?
The resonator kills a lot of the noise as the name suggests. A non resonated centre pipe would make it louder. I think most some companies do a resonated and a de-resonated SS centre pipe. Not sure about H&S but would imagine yours is the straight de-resonated type.
That is also why this pipe and a backbox is called a Cat Back system.
Like I say could be different on a classic so someone may correct me.
Well it does on a newage, classic may be different?
The resonator kills a lot of the noise as the name suggests. A non resonated centre pipe would make it louder. I think most some companies do a resonated and a de-resonated SS centre pipe. Not sure about H&S but would imagine yours is the straight de-resonated type.
That is also why this pipe and a backbox is called a Cat Back system.
Like I say could be different on a classic so someone may correct me.
19 September 2011, 01:46 PM
#4
Yeah it is just a resonated section on the classic.Most people refer to it as a centre cat for some reason.
To the op how loud is your's with the straight through pipe?
I'm looking at getting the same system but can't decide on the resonated centre or not.Is it too loud?
Danny.
To the op how loud is your's with the straight through pipe?
I'm looking at getting the same system but can't decide on the resonated centre or not.Is it too loud?
Danny.
19 September 2011, 04:01 PM
#5
Scooby Regular
Thread Starter
iTrader: (3)
Join Date: Aug 2006
Location: home
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
Mr Moff - on par with another lads that's running a 2.5 with 3" nurspec from the turbo back - but when his turbo kicks in it's not funny lol
seems there's two views on this 'centre' pipe, one cat is on the downpipe...where's the other?
seems there's two views on this 'centre' pipe, one cat is on the downpipe...where's the other?
19 September 2011, 05:09 PM
#6
Scooby Regular
depends on the age of the car, some later UK classics ran a centre cat pipe particuarly JDM cars didn't but had a similiar looking resonated centre...........
if the box is a Jap style set-up then this on its own can cause a lot of noise difference....
alyn
if the box is a Jap style set-up then this on its own can cause a lot of noise difference....
alyn
Thread
Thread Starter
Forum
Replies
Last Post
fatboy_coach
General Technical
15
18 June 2016 03:48 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM