Require help! I have an Aprilia Sr50 Ditech Piaggio Engine, and have just recently bought a Doppler s3r exhaust however, the boke has lost a hell of a lot of power since fitting the pipe and 5 gram rollers :/ before i had a leo vince tt pipe with same weight rollers and was hitting like 50mph, i am clueless what to do. I have been told to buy a doppler variator or to lighten my rollers. it is beyond me why it has lost so much power as its getting to 35mph with the new pipe then slowly getting to 45mph :/ Help would be appreciated a lot!
What was wrong with the TT pipe?.. Reduce weights on the rollers a bit.. test it and see how it goes. Remember that some exhausts perform better than others as well.
I've got to be honest as well... I think I've lost a lot of power since fitting my Doppler S3R. I'm thinking I need to changing the wool inside the silencer, as I know that can have an effect on power. Let me know how it goes if you do decide to fit the Variator.
TT pipe kinda broke numerous times but fixed it temporary haha, looked a nail tbh, so thought i'd buy a doppler!