exhaust

[xxxBlakexxx]

Well, since you said "small add-ons" I would say this is a pretty complete list:

1 - Gears (4.10s) - about $500 installed. No HP gain, but increases performance greatly. Like adding 30-40 hp.

2 - Under Drive Pullies - About $200 installed. 8 - 10 hp

3 - Cold Air Kit w/ K&N - $60 - $250 depending. 0 - 15 hp depending on which one and what you believe. The higher priced ones don't add more hp, just look better

4 - Plenum and larger throttle body - $400 or so. Easy enough to install. 9 hp...proven

5 - X Pipe. $200 - $400. 5 - 15 hp depending on the model. You need to research this depending on your other plans for exhaust.

6 - Chip or Programmer. $200 - $400. 5 - 15 hp depending on your car mostly. Autos see better performance improvement because these devices will help the way the car shifts gears.

7 - Nitrous. $400 - $1000. Safely up to about 100 hp. Biggest bang for the buck.

All hp values are actually rear wheel hp, so hp at the flywheel is about 15% higher.