Kryptek49 Posted August 1, 2018 Share Posted August 1, 2018 Hi, I bought a 57 plate HR this week, the previous owner had the car UpRev mapped @ Abbey Motorsports, and previously had Motordyne ART decats fitted. The decats were removed on sale, and I am currently using the stock cats. One of the 5 maps on the car is pops & bangs, which I believe dumps unburnt fuel into the exhaust to cause the sounds. From what I've read, this would damage the stock cats? Would it be best not to use this feature at all then? I'm tempted to get some HFC's for the car, but assume this would have the same issue as above? So the 2 choices are decats or don't use the P&B map? Anyone got any advice on this? Thanks. Quote Link to comment Share on other sites More sharing options...
cs2000 Posted August 1, 2018 Share Posted August 1, 2018 Yeah its pretty simple, it will break your cats, it happened to me. All the cats are is basically a roll of corrugated metal coated in something (platinum or something iiirc). The pops and bangs are literally un burnt fuel passing through the engine and exploding somewhere in the hot exhaust header. This constant high pressure of the explosion causes the cats to move and form a cone shape, eventually the cone will push out so far that the cat material will simply unravel and come flying out of your exhaust along with loads of black soot that was caught in the cat. I had the Berks HFC's fitted, they lasted 6-7 months after my remap before they both exploded out of the rear of the car. Unfortunately for me the cat material got stuck where the single centre pipe splits to each exhaust with such force it basically welded itself into a solid lump, queue 2 hours of trying to extract a solid metal lump 18 inches up an exhaust pipe with no straight access to it. Not fun times! Personally, im now running "decats" effectively. The berks HFC's are still there, but with no cat inside of the canisters. Quote Link to comment Share on other sites More sharing options...
OnlyAfro Posted August 1, 2018 Share Posted August 1, 2018 Mine pops and bangs without a fancy map or decats Quote Link to comment Share on other sites More sharing options...
Jack94 Posted August 1, 2018 Share Posted August 1, 2018 Sounds like you've got the situation weighed up. I'd either leave the pops n bangs map alone or invest in some decats and find a "friendly" MOT tester. The art pipes are resonated so if you liked how the car sounded with them on I'd get something similar, traditional decats are a lot louder/raspier. Quote Link to comment Share on other sites More sharing options...
Kryptek49 Posted August 1, 2018 Author Share Posted August 1, 2018 20 minutes ago, cs2000 said: Yeah its pretty simple, it will break your cats, it happened to me. All the cats are is basically a roll of corrugated metal coated in something (platinum or something iiirc). The pops and bangs are literally un burnt fuel passing through the engine and exploding somewhere in the hot exhaust header. This constant high pressure of the explosion causes the cats to move and form a cone shape, eventually the cone will push out so far that the cat material will simply unravel and come flying out of your exhaust along with loads of black soot that was caught in the cat. I had the Berks HFC's fitted, they lasted 6-7 months after my remap before they both exploded out of the rear of the car. Unfortunately for me the cat material got stuck where the single centre pipe splits to each exhaust with such force it basically welded itself into a solid lump, queue 2 hours of trying to extract a solid metal lump 18 inches up an exhaust pipe with no straight access to it. Not fun times! Personally, im now running "decats" effectively. The berks HFC's are still there, but with no cat inside of the canisters. So basically don't use the setting! Got it Only getting 6-7 months out of HFC's sucks a bit though! Quote Link to comment Share on other sites More sharing options...
cs2000 Posted August 1, 2018 Share Posted August 1, 2018 1 hour ago, Kryptek49 said: So basically don't use the setting! Got it Only getting 6-7 months out of HFC's sucks a bit though! Would have lasted a lot longer if i wasnt using pops and bangs. Mine is a DE however so i dont have switchable maps! Quote Link to comment Share on other sites More sharing options...
Kryptek49 Posted August 1, 2018 Author Share Posted August 1, 2018 54 minutes ago, cs2000 said: Mine is a DE however so i dont have switchable maps! Good point! I hadn't thought about being locked in to one map. I'll probably be fine then if I only put it on every now and then Quote Link to comment Share on other sites More sharing options...
PPod Posted August 1, 2018 Share Posted August 1, 2018 3 hours ago, OnlyAfro said: Mine pops and bangs without a fancy map or decats Same as me pops and bangs when close to the redline on motordyne with art pipes. Such a loud gunshot love it haha Quote Link to comment Share on other sites More sharing options...
OnlyAfro Posted August 1, 2018 Share Posted August 1, 2018 1 hour ago, PPod said: Same as me pops and bangs when close to the redline on motordyne with art pipes. Such a loud gunshot love it haha Nice gurgle on deceleration and flamey pops on fast downshifts. Quote Link to comment Share on other sites More sharing options...
cs2000 Posted August 1, 2018 Share Posted August 1, 2018 (edited) 1 hour ago, PPod said: Same as me pops and bangs when close to the redline on motordyne with art pipes. Such a loud gunshot love it haha The Abbey map (UpRev) only pops and bangs on low throttle application, like when youre slowing down if you hold the throttle open a tiny bit it rumbles, or if you do it at high RPM through a tunnel it sounds like World War 3 has kicked off! Also does it when you change up and down gears. I know this is a public forum so let me state this, the van filming me was doing about 25-35 mph, I perhaps touched 53-4 once but as we all know the tunnel is average 50 so I stayed under this, the run was done under or at the speed limit at around 3AM, OK?! This was also for the short few months the car had cats on it, so its a bit louder now. Randomly however with a nice quick high RPM change there is a nice bang from the rear, makes me giggle like a child! Edited August 1, 2018 by cs2000 Quote Link to comment Share on other sites More sharing options...
Ekona Posted August 1, 2018 Share Posted August 1, 2018 That sounds dreadful. The odd burble or pop is lovely, but that sounds as fake and nonsensical as the map Jag put on the F-Types. Sorry man, not a fan of the noise there at all. Love the gfx on the side though, they're absolutely perfect to liven the exterior of the car up, seriously 1 Quote Link to comment Share on other sites More sharing options...
cs2000 Posted August 3, 2018 Share Posted August 3, 2018 On 01/08/2018 at 16:30, Ekona said: That sounds dreadful. The odd burble or pop is lovely, but that sounds as fake and nonsensical as the map Jag put on the F-Types. Sorry man, not a fan of the noise there at all. Love the gfx on the side though, they're absolutely perfect to liven the exterior of the car up, seriously No worries mate, each to their own Glad you like the stripes though Quote Link to comment Share on other sites More sharing options...
GranTurismoEra Posted August 10, 2018 Share Posted August 10, 2018 (edited) On 01/08/2018 at 16:30, Ekona said: That sounds dreadful. The odd burble or pop is lovely, but that sounds as fake and nonsensical as the map Jag put on the F-Types. Sorry man, not a fan of the noise there at all. Love the gfx on the side though, they're absolutely perfect to liven the exterior of the car up, seriously I know its a different car but my 370z nismo did this with just short tails (no backbox) and everything else stock. And it was 2 -3 quick pops on downshift thats it.... Edited August 10, 2018 by GranTurismoEra Quote Link to comment Share on other sites More sharing options...
Exotic Posted August 16, 2018 Share Posted August 16, 2018 Never liked the pops and bangs sound unless maybe if you're in a something really exotic. I saw some idiot in a Fiesta ST popping and banging all the way down the high road a couple of days ago who thought he ruled the road and it sounded awful. 1 Quote Link to comment Share on other sites More sharing options...
davey_83 Posted August 16, 2018 Share Posted August 16, 2018 I personally class it with throttle controllers, engine and exhaust notes being sent thru a cars speakers, artificial and silly. Quote Link to comment Share on other sites More sharing options...
griff_350 Posted August 16, 2018 Share Posted August 16, 2018 Horsham mapped 'pops & bangs' onto my zed (decat) using a selectable map. It was fun for about a month... 1 Quote Link to comment Share on other sites More sharing options...
GranTurismoEra Posted August 24, 2018 Share Posted August 24, 2018 my CRZ pops with some revs lol. Not that anyone can hear it though. But most modern cars do it now even 4 pots. I think a few on downshift or slowing down while hot yes. Continous popping no thanks lol Quote Link to comment Share on other sites More sharing options...
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