Pulsar Turbo T51R Mod Compressor Housing - Suits PSR30-35/PTG35-50 TurbosT51R Mod compressor cover will give your turbocharger the classic jet spool whistle sound. T51R MOD FAQ 1. Does this mod help my turbo spool faster? No, it will operate exactly the same as before the modification. Does it make more power or lose power? No, the turbocharger will operate exactly the same, which means if your car is tuned previous to our machining, the parameters will remain exactly the same. 2. Can I remove the mod, if I dont want the