VTS- Exhaust?

1. Salmon1 Established Member Joined: Jul 2006 Edinburgh Posts: 1018 vts

   #1 25th February 2007, 12:36

   I want another Group N OMP Staright through, but not sure, ive heard they sap power from VTS's.
   
   
   So Magnex or scorpion is other option.
   
   What is the best option for power. Dont car about noise levels, just want as much power as possible.
   
   Also been offered a custom stainless steel job for £200, but do these actually offer any gains?
2. hesslevtr Saxperience Hardcore! Joined: May 2004 Hull (England) Posts: 18709 1.6 vtr

   #2 25th February 2007, 13:06

   best exhaust is btb
   
   but you will have trouble finding 1 and if you do there not cheap
   
   who told you they sap power
   
   piper, magnex, scorpion will all do
3. Salmon1 Established Member Joined: Jul 2006 Edinburgh Posts: 1018 vts

   #3 25th February 2007, 18:18

   So a group n omp will not sap power??
   
   will it gain power though??
4. riggsy Saxperience Post Whore Joined: Jan 2006 West Sussex Posts: 6280 Mk2 Saxo Vts

   #4 25th February 2007, 18:21

   My mate has a group n omp on his mk1 vts, sounds wicked and we have felt nothing but gains since fitting
5. hesslevtr Saxperience Hardcore! Joined: May 2004 Hull (England) Posts: 18709 1.6 vtr

   #5 25th February 2007, 18:50

   i dont see why it would lose performance
   
   unless its a very bad design
6. Salmon1 Established Member Joined: Jul 2006 Edinburgh Posts: 1018 vts

   #6 25th February 2007, 19:03

   because the 1" end can is restrictive.
7. hesslevtr Saxperience Hardcore! Joined: May 2004 Hull (England) Posts: 18709 1.6 vtr

   #7 25th February 2007, 19:04

   that could be a problem
   
   it also depends on the bends and silencers in it
   
   if it works on a vtr why shouldnt it work on a vts though
8. riggsy Saxperience Post Whore Joined: Jan 2006 West Sussex Posts: 6280 Mk2 Saxo Vts

   #8 26th February 2007, 01:18

   Quote:

   Originally Posted by Salmon1 because the 1" end can is restrictive.

   Ive been told thats why and how they create so much back pressure giving better gains!
9. VTS_16v_Boy Saxperience Post Whore Joined: Aug 2006 Dartford Kent Posts: 5251 Pug 1007 HDi Sport (daily) / Abarth 500

   #9 26th February 2007, 09:05

   If its no compremise then OMP stainless steel system will see the most gains.
   
   Most off the shelf 'performance exhausts' are just for road tuned cars - when was the last time you saw a 4" Magnex on a Rally car? For the best gains you have to buy the best items and for the VTS thats surely the OMP exhaust.
   
   Joined with a Performance manifold, cams and enclosed filter and obversley decat you could see a very good return on you money
10. Salmon1 Established Member Joined: Jul 2006 Edinburgh Posts: 1018 vts

    #10 27th February 2007, 18:26

    i went for a 3.5" Magnex with Decat pipe. £348 from POTN.
    
    Hopefully much better than my daft Jansport heap of crap
11. rushy_23 Saxperience Hardcore! Joined: Aug 2004 West Mids Posts: 15392 '98 EK9 N1

    #11 27th February 2007, 18:29

    Why do people say the BTB is the best exhaust????
    
    Its is potentially but not technically! Would be pointless on a near standard
    car. Better of with Magnex. Great exhausts that sound perfect imo.
12. Salmon1 Established Member Joined: Jul 2006 Edinburgh Posts: 1018 vts

    #12 28th February 2007, 17:45

    POTN called first thing, Magnex out of stock for 4-5 weeks. Same story everywhere.
    
    So called CAS, best known exhaust centre in scotland.
    
    They informed me they make a custom straight through Full system with no boxes or restrictors other than the backbox.
    
    You can choose any backbox style.
    
    The exhaust has a 2.25 or 2.5" bore.
    
    It is designed with performance in mind, and GAURANTEES 10bhp increase alone due to the huge amounts of backpressure.
    
    It is also Fully Gauranteed for 10years.
    
    £250 fitted.
    
    Booked in for friday.
13. VTS_16v_Boy Saxperience Post Whore Joined: Aug 2006 Dartford Kent Posts: 5251 Pug 1007 HDi Sport (daily) / Abarth 500

    #13 1st March 2007, 08:55

    Magnex, Scorpion, Janspeed, Piper etc are all road exhaust and will offer a good gain over standard exhaust systems.
    
    But Group N and A are designed to improve perofmance as much as they can within the competion noise regulations.
    
    The reason the Group N system has small tailpipes is (I think Im rite) becuase this generates a high level of Back Pressure which in NA (Non Blown -turbo/superCharged) is very important.
    
    Only problem is not everyone could live with 1 the raspy note (due to the size of the tailpipe) and 2 the look of the small tialpipe.
    
    This (I reckon) is the best exhaust money can buy - the BTB system is only for Very high powered cars and on a mildly tuned engine would lose power not add it.
    
    
    
    If Magnex is what your after then this is what it will look like - Horriable Huge siliencer that doesnt fit under the car (Sorry Im very Anti Magnex) but I will accept it is a good performer all be it a quiet one
    
    
14. VTS_16v_Boy Saxperience Post Whore Joined: Aug 2006 Dartford Kent Posts: 5251 Pug 1007 HDi Sport (daily) / Abarth 500

    #14 1st March 2007, 08:58

    Quote:

    Originally Posted by Salmon1 POTN called first thing, Magnex out of stock for 4-5 weeks. Same story everywhere. So called CAS, best known exhaust centre in scotland. They informed me they make a custom straight through Full system with no boxes or restrictors other than the backbox. You can choose any backbox style. The exhaust has a 2.25 or 2.5" bore. It is designed with performance in mind, and GAURANTEES 10bhp increase alone due to the huge amounts of backpressure. It is also Fully Gauranteed for 10years. £250 fitted. Booked in for friday.

    
    
    10bhp thats quite a good gain for a exhaust, look forward to seeing the pics once its done, Im looking to have the same style of exhaust fabricated as Im not paying £300+ for the OMP plus I want to keep my sports cat for MoT time.
    
    I take it your going to decat it as well?
15. Mysticp Scotland Joined: Jul 2005 Edinburgh Posts: 9556 Saxo 1.6i 16v VTS, 2 Classic Minis

    #15 1st March 2007, 09:06

    That sounds pretty good for CAS, will have to keep em in mind next time i run in 2 bother. Might need a custom job on a top secret project a bit further down the line too
    
    Where about are they located?
    
    P.S. Saw your S parked byt that church in brunsfeild yesterday morning, forgot you were red now, took me a while to figure out where i knew the reg from
16. Mysticp Scotland Joined: Jul 2005 Edinburgh Posts: 9556 Saxo 1.6i 16v VTS, 2 Classic Minis

    #16 1st March 2007, 09:59

    Parked in the same place today, opposite direction this time. Id flyer it if i had anymore in the car