rajarshi s
New member
I just bought a new bike with a cat and I don't plan on spending a ton of money to remove it and re tune mine either. I really don't believe it will shorten the life of the motor any. The cat is just behind the motor under the trans. anyway so all the extra heat should be going to the rear and away from the bike except when idling. The 103 has an oil cooler to help dissapate engine heat too. This is just my non scientific real world oppinion.