mr keef Posted October 31, 2004 Share Posted October 31, 2004 Hey all as ya probably know by now i have a 5 zigen exhaust and its very very low key for such a big backbox,i have got the 2 cats taken out and it still made no difference noise wise whatsoeva,i have noticed from the pics of other systems that they go straight through and the only box seems to be the back box,now just before the backbox on mine theres another quite large box,is this part of the standard system?do ya think its a silencer?as i was thinking about removing it to see if it makes any difference noise wise. whatya think heres some pics. Link to comment Share on other sites More sharing options...
mr keef Posted October 31, 2004 Author Share Posted October 31, 2004 and another Link to comment Share on other sites More sharing options...
Timwildman Posted October 31, 2004 Share Posted October 31, 2004 It doesn't look standard, The standard 1 splits into 2 and has a silencer both sides. It does look like some form of silencer tho. Link to comment Share on other sites More sharing options...
Jake Posted October 31, 2004 Share Posted October 31, 2004 Originally posted by mr keef just before the backbox on mine theres another quite large box,is this part of the standard system?do ya think its a silencer? As Tim said, it's not like the Std Toyota system but yes it's a silencer alright. i was thinking about removing it to see if it makes any difference noise wise. That's exactly what I did. Replaced it with a straight-through pipe of the same diameter. It's made a big difference to the sound. It's much louder now but not too bad. By the way mate, after doing this mod to the exhaust my car was running very rough but it just needed an ECU reset. You might find the same. Link to comment Share on other sites More sharing options...
mr keef Posted October 31, 2004 Author Share Posted October 31, 2004 Cheers lads next step for me is to get rid of that box,then if its still low key...new exhaust here i come Link to comment Share on other sites More sharing options...
nuttynutz Posted March 20, 2005 Share Posted March 20, 2005 digging out old thread. Keef, did you get rid off the middle box in the end? if you did, did it make any difference to noise? cheers Ollie Link to comment Share on other sites More sharing options...
mr keef Posted March 20, 2005 Author Share Posted March 20, 2005 yea mate sounds much better nice deep burble and a lot better on boost.The guy who done the work said the back box still kept the noise down a little. Link to comment Share on other sites More sharing options...
nuttynutz Posted March 20, 2005 Share Posted March 20, 2005 cool cool, so defintaly worth replacing that middle box? i've also just replaced both cats you see and it hasnt made much difference if any, and mines a non turbo supposedly they make a greater noice than turbos?? anyway, where did you get that replacement pipe? was it custom made? how much it cost you? pm me if you like Link to comment Share on other sites More sharing options...
SkyJawa Posted March 20, 2005 Share Posted March 20, 2005 Most of the Zigen's I've heard are quite low key........ Link to comment Share on other sites More sharing options...
supRo Posted March 20, 2005 Share Posted March 20, 2005 My car was de-catted yesterday (3") and I have just a silencer on the back box- It's very loud! I'm probably gonna upset the neighbours Link to comment Share on other sites More sharing options...
nuttynutz Posted March 20, 2005 Share Posted March 20, 2005 oh yeah, keef is this the same one you got? because this is the exact same one i have, except i didnt have that third box replacing the 2nd cat. http://www.mkivsupra.net/vbb/showthread.php?t=34872&highlight=zigen Link to comment Share on other sites More sharing options...
nuttynutz Posted March 20, 2005 Share Posted March 20, 2005 Most of the Zigen's I've heard are quite low key........ yea, i gathered that now, once i had it decatted. quite like it low key, but would like abit of a grumble out of it, sat in mates cars with a well loud deep exhaust for only 5 mins and i had a headache. Link to comment Share on other sites More sharing options...
mr keef Posted March 21, 2005 Author Share Posted March 21, 2005 That looks a bit different from my system mate,i got both my cats out and there was only 1 box left before the backbox.i got this taken out also,got the work done at aas in newcastle,they make custom exhausts etc cost around 250 all in.my 5zigen system before the work was really really low key,the bloke at aas told me theres quite a bit of silencer material in the backbox,but taking that out might be a bit to loud. Link to comment Share on other sites More sharing options...
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