As with all these trucks, it has been fitted with new exhaust equipment to meet stricter emissions laws. (fourwheeler.com)
The amount of time spent upgrading the small - block for new emission laws every decade might also be the top versus all other automotive engine development programs. (topspeed.com)
But what about tomorrow, when new mobility requirements and tougher emissions laws redefine the pleasure of driving and reassess the meaningfulness of performance? (automobilemag.com)