I have searcehed and my results are :
air raid spacer $65-$105 +1-3 mpg no HP gain
cons: annoying whistle
Intake: $150-$250 +1-3 mpg 10-15hp gain
cons: none that i know of YET!
Exhaust: $200-$1500 MPG varies and HP gains varies
cons may be to LOUD for some
thats all i know for know hope it helps and this topic has been Chopped, Beaten and tortured many times yopu should search a bit before posting But good luck on your decisions
