AN INTERCOOLER WILL HELP SOME BUT AT THE SAME BOOST PRESSURE , WHICH YOU SHOULD NOT EXCEED THE FACTORY SET, I WOULD NOT EXPECT TOO MUCH OF A GAIN, A LARGER EXHAUST FROM THE TURBO IS A DEFINATE PLUS GO AS BIG AS YOU CAN GET IN THERE AND A FREE BREATHING MUFFLER ,IT IS NOTICEABLE, THE INTAKE NOT SO MUCH ASA GAIN BUT A REAL GAIN IN NOISE LEVEL, THOSE THINGS ARE NOISEY WHEN OPENED UP. , CONTACT ME AT JLEMOND@BELLSOUTH.NET JERRY