No this isn't a steroid article or some magic pill but a training program which I used and had success with and felt I needed to share it with you all. This program is straight from AST Sports Science so I don't claim to be creative or anything. It is based on the MAX-OT system of lifting heavy and hard. You will have 4 short and sharp chest workouts over the 3 week period and by the end your bench will be much higher as much as 40lbs, mine was.
The schedule: Work your chest every 5 days. This is going to throw off your current split for sure. But come on, 3 weeks of inconvenience for 40lbs, not much of a sacrifice if you ask me.

The split: Train chest by itself and work other body parts once every 5-8 days.

The routine: Warm up
For a detailed description of how to warm up read Derek's article but here is a brief explanation. Say your working sets for the bench will be 5 reps of 100kgs. 1st warm-up set: 10 reps of the bar or maybe 40kg. This gets the blood flowing and warms the muscle.
2nd warm-up set: 6 reps of 60kg. This is easy but you are just warming up.
3rd warm-up set: 3 reps of 75-80 kg.
4th warm-up set: 1 rep 90 kg. Final weight accumulation set.

Now after you have warmed up load the bar to a weight that you can handle for 4-6 reps, no more no less, where you will reach positive failure in this rep range. NO NEGATIVES.

Now do a set of bench. As our example athlete did 5 reps of 100kgs. After you have finished the set rest at least 2-3 mins. At LEAST. Don't go for a burn or such get a full recovery.

After your rest repeat the process, twice.

There you have the flat bench component 3 sets of flat bench. After a rest of about 5 minutes move to the incline bench.

There is no need for a warm-up just select a weight that would keep you in the 4-6 rep range. Perform one set, just one and rest for 5 minutes.

Next move to dips. Again strap on enough weight to limit the reps to between 4-6. Make sure you lean forward to emphasize the lower chest. When you are done that's it. No more work for that session. Your total chest workout will look like this:

4 Warm up sets Flat bench
Flat bench 3x4-6
Incline Bench 1x4-6
Dips 1x4-6
Every 5 days.
The key to success on this program is to add 10lbs to your bench every chest workout so make sure you push yourself.