haha thats what i was thinking. im not too handy with a welder or grinder so i think im gonna have to stick to off the shelf decats lol. im tempted to go for the tegiwa one though but just looking to see what people who have used it say about it in terms of quality/ raspyness/ loundess etc.
thanks for the input guys. so will the resonated decat still be louder than with the normal cat right?