QUOTE(Gekko @ May 24 2013, 10:35 PM)
Hi guys, just to update, today I took the plunge and got my exhaust system modded. Changed to 4-2-1 extractor (did not see brand but whole thing is chrome plated, quite heavy, maybe cap ayam
), changed the centre bullet which is slightly smaller and slightly heavier than the stock. Muffler maintain at stock. After changing, just like TitanRev said, there is a difference in power delivery in the low revs and even on the mid to high revs I noticed at 80KM/h my rpm was only touching abt 2600 - 2700rpm. Previously b4 modding was at least 2800-3000rpm. The sound was good, can hear some engine growl around 3000rpm and above but overall its ok. Power wise can feel the difference. Now is to monitor the FC. Thanks again for all the input and advise.
Speed vs. RPM ratio is fixed with the gearbox, even the CVT have fixed ratio when cruising. Modding exhaust won't change your RPM at any given speed....the only way you can change that is changing gearbox.
May 25 2013, 01:50 AM

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