I myself am a fan of the AE 2035 pipe/header combo..I run this across the board from my S3,ws7-3,c-e-o c6....my c6 is in my truggy and nothing on the track touches it plus I can go over 13 min to a tank ...my s3 is in my buggy and can get over 11 mins plus has plenty of power...never had a jump that I couldnt clear due to low power. both engines are running a 6.5 venturi. outdoors the ws7-3 will be in the buggy also with the 2035 pipe