Advantages Of De-Cat ??

1. c-h-r-i-s-w Frequent Poster Joined: May 2008 Leicester Posts: 564 Saxo VTR

   #1 14th June 2008, 15:08

   above basically
   what are the advantages of decat and does it add any extra bhp??
   cheers
2. phillyc Regular Poster Joined: Feb 2008 torquay (devon) Posts: 269 saxo 02 vtr straight through exhaust

   #2 14th June 2008, 15:18

   If its a mk2 to decat it you will have to fit a performance manifold so you will have the benefits of a manifold and decat so should add about 5-8 bhp but dont expect stupid amounts of bhp just feels more responsive. made my car sounds alot louder and nicer tone.
3. phillyc Regular Poster Joined: Feb 2008 torquay (devon) Posts: 269 saxo 02 vtr straight through exhaust

   #3 14th June 2008, 15:21

   and you might get the occasional popping from your exhaust which I fink sounds nice.
   If it is a mk2 you can fit a mk1 cat under the car wen mot time comes as it fits straight on and is easier than changing manifolds.
4. hard_corejoeboy Saxperience Forum Bum Joined: Nov 2007 Southend, Essex/Thetford, Norfolk Posts: 4203 Seat Mii Toca/VW Polo Gti 6c 1.8 turbo

   #4 14th June 2008, 17:11

   I have a mk2 vtr with cat back exhaust could i get a new manifold and then fit a mk1 cat?
5. Spanky Saxperience Post Whore Joined: Dec 2007 Newcastle Upon Tyne Posts: 9578 Saxo VTS

   #5 14th June 2008, 18:06

   Quote:

   Originally Posted by hard_corejoeboy I have a mk2 vtr with cat back exhaust could i get a new manifold and then fit a mk1 cat?

   Yes you could
   
   basically ally ou would have to do is get a new manifold, Supersprint etc, which would then decat your car, i would also get a supersrpint full centre pipe but that is optional!
   
   then come MOT time you could either just refit you old manifold with the cat in, or get a mk1 cat and centre pipe which just sits undr the car
   
   
   Hope this helps
6. mikevtr Regular Poster Joined: Oct 2007 malton north yorkshire Posts: 377 Silver citroen saxo vtr mk 2 120BHP

   #6 14th June 2008, 19:02

   my vtr has a 4-1 manifold and mk1 magnex on it pops loads at first i thought there was something wrong but i like the way it pops sounds mint mot time i can put a mk1 cat in it jobs a gudden
7. hard_corejoeboy Saxperience Forum Bum Joined: Nov 2007 Southend, Essex/Thetford, Norfolk Posts: 4203 Seat Mii Toca/VW Polo Gti 6c 1.8 turbo

   #7 14th June 2008, 19:29

   so will i have to change my exhaust? as its aftermarket i'd also like to keep the cat on permanantly.
8. Steve Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5

   #8 14th June 2008, 19:34

   its an advantage if you like burning more fuel
   tbh imo i seen no performance incrase just sound and fuel went flying down.
   
   There is some dyno runs on 106rallye proving it does increase BHP a bit.
   
   But sure there is a thread on here saying you need at least one box in the system regarding back pressure etc etc think its a sticky its a good read
9. Ross-1987 Established Member Joined: Dec 2007 Colchester Posts: 1511 Black 02 Saxo VTS

   #9 14th June 2008, 19:37

   I have a mk2 VTS
   i had the option of a straight through exhaust with no cat but opted for a Cat-back system, them i removed the cat a few weeks later and added the extra pipe to D-cat it, so now at MOT time all i have to do is remove that section of pipe (2ft) and put the cat back in, problem solved
10. GazWestcoast Newbie Joined: Dec 2007 Gloucester Posts: 13 westcoast saxo

    #10 2nd July 2008, 21:41

    does anybody know a website to get one for a westcoast
11. dynebaruk Established Member Joined: Apr 2008 Bridgend Posts: 1098 Golf GTI 1.8 turbo

    #11 2nd July 2008, 21:48

    Pretty sure KamRacing will do one:
    
    http://www.kamracing.co.uk/
    
    Might even have a club discount for one too, I haven't looked though.