De - Cat

by **500tie** » Fri Aug 14, 2009 1:49 pm

Has anyone de-cat their car with the standard prodrive backbox, just wondering if it made a lot of difference or if im better off just changing the back box aswell.

Id rather keep the prodrove one though as i like the sound of it and its looks?

by **WR 1mposter** » Sat Aug 15, 2009 11:26 am

Not sure if anyone has, but Hayward an Scott do a 2.5 decat downpipe.

Know what you mean regarding the prodrive backbox, thats why i went for the aps system it looks the same !

by **Mac-1** » Sat Aug 15, 2009 3:30 pm

Yep,

I have and it makes a big difference, EVO 3695 has done the same to his 1.

by **500tie** » Sat Aug 15, 2009 6:42 pm

Nice one did you change the front downpipe and the centre cat?

by **Mac-1** » Sun Aug 16, 2009 9:24 am

500tie wrote:Nice one did you change the front downpipe and the centre cat?

Yep,

Complete de-cat and straight through to the back box.

by **weng** » Sun Aug 16, 2009 6:41 pm

How does the car sound with a set-up like this? Is it much louder?

by **CAVEMAN** » Mon Aug 17, 2009 7:12 am

I got a similar set up too - H&S system all the way with a de-cat...

it has a rolled inner edge on the back box so looks like the Prodrive effort but slightly larger - but only just.

Sounds a bit louder but nothing major. Vids are in garage section I think

by **steve.w** » Thu Aug 20, 2009 5:38 pm

when i first got my wr1 it had a 2.5" decat fitted to the standard wr1 exhaust and it sounded really nice.
was a bit louder but not loads,just a nice level of noise and a really deep,meaty burble

by **EVO 3695** » Thu Aug 20, 2009 9:53 pm

Mac-1 wrote:
500tie wrote:Nice one did you change the front downpipe and the centre cat?

Yep,

Complete de-cat and straight through to the back box.

Sure thing same as mine,will pop and bang if you get the revs right.........Nice........ ask Mac 1

by **MaverickUK82** » Thu Aug 20, 2009 10:01 pm

If you do this, would it mean a remap?

Also, the CAT is there for a reason, how does it affect emmissions with the centre CAT removed? I'm thinking about the MOT.

by **Foley** » Fri Aug 21, 2009 5:40 am

MaverickUK82 wrote:If you do this, would it mean a remap?

Also, the CAT is there for a reason, how does it affect emmissions with the centre CAT removed? I'm thinking about the MOT.

Just find a mot friendly garage,

by **EVO 3695** » Fri Aug 21, 2009 7:01 am

Foley wrote:
MaverickUK82 wrote:If you do this, would it mean a remap?

Also, the CAT is there for a reason, how does it affect emmissions with the centre CAT removed? I'm thinking about the MOT.

Just find a mot friendly garage,

We have both found one

by **MaverickUK82** » Fri Aug 21, 2009 7:28 am

Ok. Not sure if that's a possibility, am only planning to use either Subaru or Clive Atthowe in Norwich, who are probably straight down the line.

by **CAVEMAN** » Fri Aug 21, 2009 8:36 am

MaverickUK82 wrote:Ok. Not sure if that's a possibility, am only planning to use either Subaru or Clive Atthowe in Norwich, who are probably straight down the line.

Well just take your old exhaust with you and include "new exhaust removal and re-fitting" in with the price of the MOT.

Job's a bad un

by **WR 1mposter** » Fri Aug 21, 2009 6:28 pm

MaverickUK82 wrote:Ok. Not sure if that's a possibility, am only planning to use either Subaru or Clive Atthowe in Norwich, who are probably straight down the line.

I bet he aint :lol:

by **MaverickUK82** » Fri Aug 21, 2009 9:24 pm

would the car need to be remapped?

by **zedder** » Fri Aug 21, 2009 9:32 pm

decat=remap simples!! :wink:

by **WR 1mposter** » Fri Aug 21, 2009 9:53 pm

MaverickUK82 wrote:would the car need to be remapped?

Don't think evo1234 or mac have had remaps, personally I would'nt risk it, but evo an mac are pensioners !

by **EVO 3695** » Mon Aug 24, 2009 12:26 pm

WR 1mpostor (aka number 1 moderator) wrote:
MaverickUK82 wrote:would the car need to be remapped?

Don't think evo1234 or mac have had remaps, personally I would'nt risk it, but evo an mac are pensioners !

Excuse me get your facts right !!!! Macs the pensioner I'm just he's carer (special needs ).I've had no remap and my engine has not blown yet,but then again mine is a real " 1 " :lol:

by **dynamix** » Mon Aug 24, 2009 12:45 pm

MaverickUK82 wrote:Ok. Not sure if that's a possibility, am only planning to use either Subaru or Clive Atthowe in Norwich, who are probably straight down the line.

Have you spoken to any of the locals from that area from scoobycity.co.uk ?

by **MaverickUK82** » Mon Aug 24, 2009 1:39 pm

No.

Not a member of any other sites but this one!

by **WR1 Bro** » Mon Aug 24, 2009 1:40 pm

MaverickUK82 wrote:No.

Not a member of any other sites but this one!

Loyalty, that's what we like.

by **500tie** » Tue Aug 25, 2009 4:53 pm

Im definatly going to get the front and centre de-catted now and get it re mapped some time im hoping itl sound really nice with that Prodrive back box..

by **jimmy** » Tue Aug 25, 2009 5:23 pm

i had a full de-cat with a 6" oval backbox and sounded like thunder,only problem is that i dont like the shape of the backbox,im awaiting to get a carbon 5" slashcut put on

since i got the sports cat fitted the car is quieter

:lol:

by **steve.w** » Tue Aug 25, 2009 6:01 pm

500tie wrote:Im definatly going to get the front and centre de-catted now and get it re mapped some time im hoping itl sound really nice with that Prodrive back box..

was a decat up-pipe part of the ppp on your car?
if not,which i don't think it was,you would really benefit from fitting a decatted up-pipe too while you're at it.a standard sti up-pipe would be perfect if you haven't already got one on the car.i wouldn't fit one until close to your remapping time though as that,combined with the decatted downpipe,will most probably make your car overboost :wink:

by **500tie** » Tue Aug 25, 2009 6:40 pm

To be perfectly honest i don't know if it had a de-cat up pipe but ill look into it thanks for that steve.

I was going to get all the de-cat parts fitted and have it re-mapped at david hendrys on the same day. That way i should be able to maximise the performance gains.

by **WR 1mposter** » Wed Aug 26, 2009 8:50 pm

EVO 3695 wrote:
WR 1mpostor (aka number 1 moderator) wrote:
MaverickUK82 wrote:would the car need to be remapped?

Don't think evo1234 or mac have had remaps, personally I would'nt risk it, but evo an mac are pensioners !

Excuse me get your facts right !!!! Macs the pensioner I'm just he's carer (special needs ).I've had no remap and my engine has not blown yet,but then again mine is a real " 1 "

Yes i've heard about mac's special needs, the rumours is when you blow him deep stylee, he looks down an sees ginga pubes again, it apparently brings back youthful memories :lol:

by **MaverickUK82** » Tue Jan 05, 2010 12:14 pm

500tie wrote:Im definatly going to get the front and centre de-catted now and get it re mapped some time im hoping itl sound really nice with that Prodrive back box..

I thought the WR1 only had 1 cat located just after the downpipe?

by **Clark** » Tue Jan 05, 2010 12:35 pm

Mine's de-catted all the way through (H&S Downpipe) to the standard Prodrive back box as I too like the style of it and aint a huge fan of the big 16" slash cut ones :lol:

Not much louder than standard on idle but it's pretty loud when you boot it and you hear the turbo spooling up more - it's just perfect in my opinion

by **Megaman** » Tue Jan 05, 2010 1:01 pm

Clark wrote:Mine's de-catted all the way through (H&S Downpipe) to the standard Prodrive back box as I too like the style of it and aint a huge fan of the big 16" slash cut ones

Not much louder than standard on idle but it's pretty loud when you boot it and you hear the turbo spooling up more - it's just perfect in my opinion

Yours is probably louder than most as knowing you ya polish the inside of ya exhausts monthly to keep the bling looking sparkly


	Board index ‹ Technical, Tuning, Modifications and Car Care ‹ Tuning and styling On the WR1 Change font size Print view


	Who is online Users browsing this forum: No registered users and 28 guests

De - Cat

De - Cat

Who is online