The latest Sinister Performance modern Mopar car to hit our dyno for a tune was this 2006 Jeep SRT/8.  The SRT/8 Jeeps were only in production from 2006 to 2008. This particular Jeep tossed the stock 6.1L engine in favor of a 427ci stroker motor.   Along with a cat-back exhaust, intake, cam, and custom FLI tune this Jeep can really get out of its way.  FLI was able to get a solid 20 WTQ and 15 WHP from this non-force inducted stroker Jeep.