Foulsmell 120 Report post Posted November 23, 2016 Hi All. Was looking at this thread... http://www.ft86club.com/forums/showthread.php?t=96235 .. where they have just gutted the cats and tuned the car basically. The results look around 80% of a replacement header but at a fraction of the cost. Also almost deleting the torque dip. Has anyone done this over here? What are your thoughts? Cheers. Share this post Link to post Share on other sites
Kodename47 446 Report post Posted November 23, 2016 My OEM mani has no cat..... not gutted though. Also SC, so can't really comment. Try it, why not?.... it's free. A replacement mani is cheap if you don't like it. 1 Foulsmell reacted to this Share this post Link to post Share on other sites
Tareim 343 Report post Posted November 23, 2016 38 minutes ago, knightryder said: My OEM mani has no cat..... not gutted though. Also SC, so can't really comment. Try it, why not?.... it's free. A replacement mani is cheap if you don't like it. so you chopped the section out and replaced it with another bit of pipe? Share this post Link to post Share on other sites
surrey86 352 Report post Posted November 23, 2016 Well, a downside obviously is you're going to need to buy another oem pipe to pass an MOT, so it's not really free. Share this post Link to post Share on other sites
long-gone 152 Report post Posted November 24, 2016 Probably not. Secondary cat should see you through. ETA - Just noticed in link they're removed that too, so you're probably right. Share this post Link to post Share on other sites
Ade 517 Report post Posted November 24, 2016 10 hours ago, Tareim said: so you chopped the section out and replaced it with another bit of pipe? Mark at Abbey motorsport did it for him few years ago. I'm tempted as it doesn't appear to add too much noise. Share this post Link to post Share on other sites
Foulsmell 120 Report post Posted November 24, 2016 I've got the secondary cat off the car but can replace come MOT time. All I'd have to do is get the map adjusted I suppose. Share this post Link to post Share on other sites
Foulsmell 120 Report post Posted November 24, 2016 10 hours ago, Tareim said: so you chopped the section out and replaced it with another bit of pipe? Mark at Abbey motorsport did it for him few years ago. I'm tempted as it doesn't appear to add too much noise. Cheers. I don't think the noise would be too much difference. I've got a resonated Milltek anyway so won't be too loud. Share this post Link to post Share on other sites
Keethos 842 Report post Posted November 24, 2016 Mark at Abbey was doing a swap scheme at one point, where to save time and a bit of money you could give him your manifold and he would give you one that he had already modified. Not sure if he's still doing it or not. 1 Foulsmell reacted to this Share this post Link to post Share on other sites
Foulsmell 120 Report post Posted November 24, 2016 Found the thread but no update on it for nearly 2yrs. I've PMd him to have a look at this and share his thoughts. Share this post Link to post Share on other sites
Mark@Abbey M/S 235 Report post Posted November 28, 2016 Hi, catching up with emails. Yes we did a few of these a while ago , It doesn't remove the torque dip we found, it helps make the torque dip a little less obvious. approx a £400-00 job , quite labour extensive job , to remove all the heat shields , cut the cut out and fabricate the pipe to replace the Cat and weld up and refit all the heat shields Share this post Link to post Share on other sites
Foulsmell 120 Report post Posted November 28, 2016 Hi, catching up with emails. Yes we did a few of these a while ago , It doesn't remove the torque dip we found, it helps make the torque dip a little less obvious. approx a £400-00 job , quiet labour extensive job , to remove all the heat shields , cut the cut out and fabricate the pipe to replace the Cat and weld up and refit all the heat shields Cheers Mark. The one on the thread just smashed the cat in and didn't replace with a straight pipe. Don't suppose you've got any plots? Share this post Link to post Share on other sites
Mark@Abbey M/S 235 Report post Posted January 25, 2017 Afraid not on a manual NA car , most went on FI cars or a Auto NA I am afraid Share this post Link to post Share on other sites
Church 209 Report post Posted January 25, 2017 Even if not £400 with replacing with stright pipe, but simply smashing primary cat, i'd leave stock as is. 1) cheapest aftermarket headers are not too expensive, eg. gruppe-s and alikes .. 2) they'll get rid from torque dip too & are lighter then stock 3) you'll have your free stock header for when/if sometime in future MOT inspection rules may get stricter and for when you'll sell your car without need to buy one used from someone parting out. Unmodded/stock cars often are much easier to sell, and sometimes even at premium vs modded ones. Share this post Link to post Share on other sites