How do I change my spark plugs on a 1999 Subaru Forester? Mechanics want $80 dollars just for labor to change the plugs.

The firing order for the 2015 Subaru Forester 2.5i is 1-3-2-4. This means that the spark plugs will fire in the following sequence: first cylinder, third cylinder, second cylinder, and fourth cylinder.
The firing order of an engine refers to the sequence in which the spark plugs ignite the fuel in the cylinders. The firing order is determined by the engine's design and is important for ensuring that the engine runs smoothly and efficiently.
In a 4-cylinder engine like the 2015 Subaru Forester 2.5i, the cylinders are typically numbered from left to right, starting at the front of the engine. The firing order for a 4-cylinder engine is typically 1-3-2-4 or 1-2-3-4, with the spark plugs firing in a sequence that alternates between the left and right sides of the engine.

Not really hard at all. Remove air intake on pass. side, twist plug boots to help release, use socket, extension, etc. Use anti-seize on the threads of new plugs and torque to proper specs. DO THIS WITH ENGINE DEAD COLD to prevent damage to threads in head. Other side is even easier. Smear silicone grease on plug wire socket and edges to ease install and removal next time.

Did you replace the plugs with the same plugs (Manufacturer) as the plugs you had in there. Some cars are very picky with plugs. ie: some Japanese cars will only run well with NGK Spark Plugs. Try to use only what Subaru recommends in your engine for the best performance.

spark plug make= ngk
plug type =BKR6E-11
GAP=1.1mm A TURBO MODEL WILL BE 0.7-0.8 MM GAP

It's likely the coil. Subaru issued a TSB (Technical Service Bulletin) on this issue. This is not a recall but you may want to show this to your Subaru mechanic or call Subaru after your repair to try to at least defray some or all of the cost for the repair. The link is below:

Subaru Forester Ignition TSB

30,000 miles manufacture recommendation.

04 probly aluminum but i change spark plugs all day at work and just make sure there tight you dont need a torque wrench to put them in just sinch them down you will be fine.
good luck

problebley 50-60 dollars and about 30.00 for gasket

Best thing to do is get on the phone and call an auto parts store and get a price on the parts you want to replace, than bump that up about 10% more or less witch is most likely a shop will do, and then take that and add the labor, witch averages around 60 to 70 bucks per hour at a independent shop and 80 to 100 bucks per hour at a dealer. They will chg. at least 4 hours. remember this is only a gessament and everyone chg. different, but its someware in the ball park. Depending on what the parts cost 500 to 600 dollars is not out of the realm of posabilitys. whole lot cheaper if you do it yourself.

has to be fuel /air / or electrical....otherwise internal mechanical ....is timing off?