Quick question about exhaust

1. Devine15 Infrequent Poster Joined: Jan 2015 London Posts: 162 Mk1 Quartz VTS and Mk1 Posi Blue VTS

   #1 28th January 2015, 21:35

   Hi,
   
   Just wanting some knowledge about exhausts, been looking on this forum and people seem to know their stuff!
   
   Im looking to change my exhaust for better performance and a nicer sound, my question is will I have to change my catalytic converter to a sports one as well as my manifold and back box etc?
   
   Is there any way of bypassing the catalytic converter and not have problems with MOT?
   
   Ive read about a de-cat pipe...not too sure what that is though...
   Cheers!!
   
   2000 Black VTR
2. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #2 28th January 2015, 22:12

   Yes there is a way. Buy a decat and swap back for MOT time. Other way is to get a full race system and then keep the original in your shed for 364 days of the year.
3. Devine15 Infrequent Poster Joined: Jan 2015 London Posts: 162 Mk1 Quartz VTS and Mk1 Posi Blue VTS

   #3 28th January 2015, 22:22

   Quote:

   Originally Posted by KamRacing Yes there is a way. Buy a decat and swap back for MOT time. Other way is to get a full race system and then keep the original in your shed for 364 days of the year.

   
   Thanks matey, so is it not worth keeping the original catalytic converter and upgrading the rest of the system? (Just thinking of saving me having to change it for MOT time Im a lazy b*****d haha)
   
   If its best to get the full system, any recommendations?
   
   Thanks again
4. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #4 28th January 2015, 23:43

   yes and no. If you are chasing power then the oe cat is probably the most restrictive part of your exhaust system. If you want a little gain, but staying road legal fit a cat back. You will get the sporty sound whatever.

   1 user thanked this post: Devine15
5. Daniel_Saxo_VTR Infrequent Poster Joined: Oct 2014 Cambridgeshire Posts: 130 Saxo VTR phase 2 with SUPERSPRINT ! ;D

   #5 29th January 2015, 18:26

   Fit a cat back system first, then if you still want more then buy a 4-2-1 manifold and decat pipe. Won't pass an MOT unless you get friendly with the tester.

   1 user thanked this post: Devine15
6. Devine15 Infrequent Poster Joined: Jan 2015 London Posts: 162 Mk1 Quartz VTS and Mk1 Posi Blue VTS

   #6 29th January 2015, 18:35

   Quote:

   Originally Posted by Daniel_Saxo_VTR Fit a cat back system first, then if you still want more then buy a 4-2-1 manifold and decat pipe. Won't pass an MOT unless you get friendly with the tester.

   
   Cheers for the info, helped alot!