Burnout 0 Posted July 30, 2005 Are any of you boyos running a de cat exhaust? Mine is on its last legs so I'm going for a straight thru pipe, I know a very freindly MOT guy too. Opinions would be appreciated. (BTW, also have a full milltek) Thanks! Quote Share this post Link to post Share on other sites
Walesy 0 Posted July 30, 2005 My mine is on its last legs i wouldnt go using explosives that are on their last legs mate... :wink: Quote Share this post Link to post Share on other sites
Burnout 0 Posted July 30, 2005 HA!! have corrected it :) Quote Share this post Link to post Share on other sites
dazzyvr6 0 Posted July 30, 2005 i dont think you will gain any more bhp,it may go a bit louder,i think there is a sports cat available? Quote Share this post Link to post Share on other sites
bix 0 Posted July 30, 2005 Cats are expensive tho, a milltek decat pipe is £55 iirc, which is also a silencer. Quote Share this post Link to post Share on other sites
Chris VR6nos 0 Posted July 30, 2005 I have to add that i got a VERY noticable difference when replaced with a cat-pass pipe, i know i have a charger but Kev The Wire didn't have his charger at the time and reported a noticeable difference on N/A. We both run VR6's too. Chris Quote Share this post Link to post Share on other sites
dr_mat 0 Posted July 30, 2005 Vince up at Stealth apparently reported zero difference on the rolling road when doing a before-and-after power run during the fitting of a de-cat pipe to a standard Golf VR6, or so I'm told. Shares can go down as well as up, in other words. I am told, however, that the benefit is greatly increased if you're running FI. Quote Share this post Link to post Share on other sites
NickVR6 0 Posted July 30, 2005 Mines at stealth next friday with a cat bypass in the boot. Will let you know. Unless mines putting out 120bhp on the first run in which case i will be very quiet. Quote Share this post Link to post Share on other sites
veeDuB_Rado 0 Posted July 30, 2005 damn...i need a de-cat exhaust baaad Quote Share this post Link to post Share on other sites
andy 0 Posted August 9, 2005 What's the legal position with de-cats, could you get a b*llocking if pulled over and they find you haven't got a cat? Quote Share this post Link to post Share on other sites
Walesy 0 Posted August 9, 2005 yes...unless your car is pre 93 i think....like mine is :D ....the main problem is the MOT mate...you wont pass without a cat in a 94 car....although if you do decide to put the cat amongst the pigeons and let the cat outta the bag so to speak...make sure you keep the CAT and swap it over before MOT time!. Quote Share this post Link to post Share on other sites
chrishill 0 Posted August 9, 2005 damn...i need a de-cat exhaust baaad simple solution to that... early valvers dont have cats mate! :D Quote Share this post Link to post Share on other sites
Neil VR6 0 Posted August 9, 2005 You need a cat from 92 onwards. :) Quote Share this post Link to post Share on other sites
coullstar 0 Posted August 9, 2005 IIRC you dont legally have to have a CAT at all but the only way you are going to pass the emissions test is with one. Quote Share this post Link to post Share on other sites
Burnout 0 Posted August 13, 2005 Well I've just had it fitted and its great. Realy nice deep roar and it certainly feels alot perkier! It feels like it revs alot more free through the rev range, nice ;) Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted August 13, 2005 IIRC you dont legally have to have a CAT at all but the only way you are going to pass the emissions test is with one. Nope, all they check is the CO at idle and VRs always fall well within the permissable CO limits for that age bracket. The Cat is only really effective at higher rpms. I've got a SuperSprint bypass on mine which and difference is very noticable. Quote Share this post Link to post Share on other sites
andy 0 Posted August 15, 2005 So do you legally have to have one on a post 1992/3 car? Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted August 15, 2005 Try an MOT without and see what happens. The worst that can happen is you'll have to get the cat fitted and retested.... Quote Share this post Link to post Share on other sites
mrbeige 0 Posted August 15, 2005 Any petrol car post 93 must have a CAT on it for emmissions reasons. It will not pass an MOT without it, unless you have a friendly MOT person! Mine didn't pass, so I put the CAT back on (for the MOT!). Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted August 15, 2005 My bypass looks like a sports cat though.... so unless the tester sticks his nose up the exhaust and detects a distinct lack of sulphur, then I reckon she'll pass :lol: If not then it's the perfect excuse to fit a Jetex Sports cat and Magnex system, or SuperSprint. Quote Share this post Link to post Share on other sites
MattWilde 10 Posted August 15, 2005 As far as in know, it's not a legal requirement to have a cat after '92/93, but the emission laws became alot stricter then so cats are normally needed to pass the test. If you pass without a cat there is no problem in not having one but it's unlikely you will pass. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted August 15, 2005 The CO & hydrocarbon (HC) allowance for pre 96 cars (pre OBD2) and EURO2 emissions, is quite large. My MOT test sheet from last year:- Acceptable limits - Fast idle test CO - Acceptable = 0.20%. Measured = 0.04% - Pass HC - Acceptable = 200ppm. Measured = 85ppm - Pass Lambda - Acceptable = 0.970 - 1.030. Measured = 1.002 - Pass Acceptable limit - Natural idle test CO - 0.30% Acceptable. Measured = 0.02% - Pass So long as those figures are reached or better, the car will pass with or without a cat. Quote Share this post Link to post Share on other sites
