dillan Posted November 15, 2022 Share Posted November 15, 2022 Looking to change my whole stillen exhaust system with a japspeed decat/test pipes and isr exhaust. Heard somewhere that i will have to get a tune after doing the Decat otherwise the car will run either dangerously lean or rich? Some people have also said that it’s fine and the car won’t require a tune. Whats the verdict, will i need a tune or not after decats? Quote Link to comment Share on other sites More sharing options...
Coz@TORQEN Posted November 15, 2022 Share Posted November 15, 2022 A map is advised as the car will compensate for the extra fuel making it run rich. You can run them without a map, no problem but it is highly advised. You might also see an engine management light which can be corrected with the map too. Quote Link to comment Share on other sites More sharing options...
dillan Posted November 15, 2022 Author Share Posted November 15, 2022 45 minutes ago, Coz@TORQEN said: A map is advised as the car will compensate for the extra fuel making it run rich. You can run them without a map, no problem but it is highly advised. You might also see an engine management light which can be corrected with the map too. Would a map be urgent? thinking of doing the decat in early december and then getting it mapped mid january. If i dont get it mapped straight away after doing the decat would this be damaging to the engine or would running it for this amount of time be okay? Quote Link to comment Share on other sites More sharing options...
Coz@TORQEN Posted November 15, 2022 Share Posted November 15, 2022 2 hours ago, dillan said: Would a map be urgent? thinking of doing the decat in early december and then getting it mapped mid january. If i dont get it mapped straight away after doing the decat would this be damaging to the engine or would running it for this amount of time be okay? It'll be okay for that amount of time. 1 Quote Link to comment Share on other sites More sharing options...
dillan Posted November 15, 2022 Author Share Posted November 15, 2022 2 hours ago, Coz@TORQEN said: It'll be okay for that amount of time. Appreciate you 1 Quote Link to comment Share on other sites More sharing options...
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