I want tail lights with more brightness & contrast

These DOT-approved bulbs are interchangable:

Trade No.	Filament	Volts	Watts	Amps	Candle Pwr.	Life (hours)
2057	Low	14.0	6.86	0.49	2	5000
2057	High	12.8	26.88	2.10	32	1200
1034	Low	14.0	7.14	0.51	2	5000
1034	High	12.8	23.04	1.80	26	1200
1157	Low	14.0	8.26	0.59	3	5000
1157	High	12.8	26.88	2.10	32	1200
2397	Low	14.0	6.72	0.48	2	5000
2397	High	12.8	28.54	2.23	40	400
2357	Low	14.0	8.26	0.59	3	5000
2357	High	12.8	28.54	2.23	40	400

For example, I use a 2357 in the center light, and 2397's on the outer lights. The 2357 has a standard low filament like the 1157, and a brighter brake lamp; good for a normal running lamp wth a bright brake light.

The 2397 has a dimmer running lamp and a brighter brake lamp than the 1157; good for a bright brake light (or in my case, turn signals), but with more contrast due to the dimmer running filament (which also uses less power and produces less heat).