Keiranleigh Posted March 24, 2018 Report Share Posted March 24, 2018 Not sure if this is tuning but... I've got a 1.4 75hp petrol and I want a louder 'better' sound without it being too loud as it is a daily. I still want the CAT (obviously) but want to know if the middle or back box would be better to change. I'm willing to buy if anyone has one for sale. Thanks. Quote Link to comment Share on other sites More sharing options...
Rich Posted March 24, 2018 Report Share Posted March 24, 2018 change the back box for a straight through pipe. keep the cat/middle box. makes it louder but not obnoxious from the drivers seat. Quote Link to comment Share on other sites More sharing options...
Keiranleigh Posted March 25, 2018 Author Report Share Posted March 25, 2018 8 hours ago, Rich said: change the back box for a straight through pipe. Do you mean just a straight pipe or a straight though (absorption type) back box eg there are some on eBay cheep universal cheery bomb. Quote Link to comment Share on other sites More sharing options...
Rich Posted March 25, 2018 Report Share Posted March 25, 2018 keep it cheap and simple, just stick a pipe in place of it Quote Link to comment Share on other sites More sharing options...
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