Fast Intentions LTH plus exhaust -
Fast Intentions Long Tube Headers are here! (+30WHP & +20TQ)
Powerhouse Amuse Exhaust -
Amuse R1 Titan Extra STTI Exhaust - Review (pics/vids/dyno) (+15WHP & +8TQ)
Both system much cheaper than yours and providing equal power gains or more. Both systems weight less than stock by a large margin (25-35lbs under stock). While I think your system looks very promising, you must understand this is
not Porsche or Mercedes AMG so by pricing this system so high you are eliminating any possible customers.