Darrenb10 Member 35 Member For: 7y 6m 23d Posted 07/04/18 12:55 PM Share Posted 07/04/18 12:55 PM Hey guys. I have a 335 kw bf with a full exhaust system with standard rear muffler. Just wondering if I take the rear muffler will it affect my tune or will it need a re tune after cheers Link to comment https://www.fordxr6turbo.com/forum/topic/93838-remove-muffler-without-a-re-tune/ Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,418 Member For: 17y 8d Gender: Male Location: Melbourne Posted 07/04/18 12:57 PM Share Posted 07/04/18 12:57 PM The rear muffler is fine to change for a straight pipe or a higher flow muffler. Link to comment https://www.fordxr6turbo.com/forum/topic/93838-remove-muffler-without-a-re-tune/#findComment-1655135 Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 16,290 Member For: 10y 2m 20d Gender: Male Location: South Australia Posted 07/04/18 01:01 PM Share Posted 07/04/18 01:01 PM It's a modified ve tuned car and might not take ve changes well. It will lean out a bit. You might need a touch up and you might not. Ask your tuner. Link to comment https://www.fordxr6turbo.com/forum/topic/93838-remove-muffler-without-a-re-tune/#findComment-1655136 Share on other sites More sharing options...
Darrenb10 Member 35 Member For: 7y 6m 23d Posted 07/04/18 09:33 PM Author Share Posted 07/04/18 09:33 PM No worries thanks guys Link to comment https://www.fordxr6turbo.com/forum/topic/93838-remove-muffler-without-a-re-tune/#findComment-1655137 Share on other sites More sharing options...
Rab WOT? Moderating Team 10,981 Member For: 12y 1m 24d Gender: Male Location: Frankston, 3199 Posted 08/04/18 01:15 PM Share Posted 08/04/18 01:15 PM Yeah - stock rear is fine to ditch, doesn't change the flow Built system.... who knows Link to comment https://www.fordxr6turbo.com/forum/topic/93838-remove-muffler-without-a-re-tune/#findComment-1655240 Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 16,290 Member For: 10y 2m 20d Gender: Male Location: South Australia Posted 08/04/18 01:26 PM Share Posted 08/04/18 01:26 PM A stock tune has heaps of fuel. A tuned car could already be at 12.5:1 up top and might not like being a couple of points leaner. It's a timing/fuel trade off around this area. Link to comment https://www.fordxr6turbo.com/forum/topic/93838-remove-muffler-without-a-re-tune/#findComment-1655242 Share on other sites More sharing options...
Box stock T. Member 1,384 Member For: 10y 11d Posted 08/04/18 01:50 PM Share Posted 08/04/18 01:50 PM What this guy said ^^^^ delete pipe or more free flowing system may need a tickle up on the tune. I brought this same question up with my tuna.. Definitely worth giving ya tuna a quick buzz, especially since ya up in the 330+ range. Link to comment https://www.fordxr6turbo.com/forum/topic/93838-remove-muffler-without-a-re-tune/#findComment-1655243 Share on other sites More sharing options...
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