Alright, the coupon codes are as follows.
TrickorTreat = 10% off most items on the website. There are some that do not apply like ACT and Rally Armor for example. This code will not work for ATP Turbo's either.
SmellMyFeet = 5% off ATP bolt on turbo kits (both ewg and iwg). In order to get the discount on the turbo, you will need to order it separately from any other items since you can't stack coupon codes on the website.
Let me know if you have any questions!