bw_hunter

The stock TB can be bored to 54mm...why not have the local guy do that, replace the throttle shaft bushings and throttle blades. That will support more than 500 fwhp and be pretty cheap.

colts0455

ok cool 54mm what tb gasket will i need to use.replace the throttle shaft bushings and throttle blades< whats that & does it need to be done.

bw_hunter

When you look into the throttle body, those round things that move are the blades. They have to be the right size for the bore. The seals go at the ends of the shaft to keep air frm leaking in and messing up the idle. The machinist that does the boring will be able to get the right blades and seals....

Midnight_Z

TB bypass is worth a few ponies. Airfoil is cheap and worth a few ponies. 1le elbow is nice because it gets rid of the donkey dick silencer that the stock elbow has hanging off of it and frees up space for an electric water pump if you ever want to go that route. 1le hp gain? Maybe a hp. CAI is a must. The stock throttle body is perfect a 52mm is the biggest waste of money unless you plan on a 500+ hp engine. The stock MAF sensor is the best, I wouldn't mess with it. Get mid or long tube headers and a nice catback with a mail order tune.