Depends on your area. From $250-$350 is normal.
about 20 bucks
about $1400, it sucks
A tire rod on a 2000 Dodge Neon cost approximately 119.00 to replace. 15.00 at Napa
The average cost of a new transmission for a dodge neon is about $2,000. This price and increase or decrease based on anything special added to it.
According to fueleconomy.gov, a 2003 Dodge neon gets 19 mpg in the city and 27 mpg on the Highway. The annual fuel cost of a Dodge Neon is about $2000.
If it's just the horn itself...$20 buck for the new horn. install it yourself with the Haynes repair manual, Dodge Neon 2000 thru 2003. Book #30036. The horn is under the passenger headlamp.
$150.00 It is over a 5 hour job, so if you are taking it to a shop it will be a lot higher than that.
I just had the starter on my 2001 dodge neon replaced for $300.00 parts and labor and it was ready within the hour.
To spend that money on a turbo kit on a high mileage engine wouldn't be cost effective/recommended. You should rebuild it and install turbo pistons, forged rods and then you could take advantage of the turbo.
about 5000
It cost me around $200
Rear brake pads on a 2004 Dodge Neon are 44.95 at Auto Zone. You can find them cheaper on places like amazon and eBay, if that cost is too high for your budget.