What model of Nova? You match your pipe to the engine and track size and condition. Most Novas run good with a 2053 pipe.
A JP3 will work on just about anything.
:whhooo:My track is medium size with one straight. The rest is turns and jumps. The motor is a pk5 believe. Just getting into this racing thing. Been bashing forever, now there is a whole new world of things to learn
2053 for sure then. Go to E-Bay and buy a Dynamite Platinum 2053. Best made pipes for the money. Super durable and affordable. The 21-5 ports really like the 2053.