Well the first was the aFe Blade Runner intercooler charge tubing, then the aFe Silver Bullet throttle body spacer. Made it fit but it was a lot of trial and air to line the charge tube up with the added length of the throttle body. Next was the aFe Stage 2 CAI and I have to say the sound is amazing compared to stock, I did pick up the cover just in case I found the filter was getting dirty too quick exposed under the hood. I have a MBRP 3" Cat Back exhaust on order (in any day now), can't wait. The SCT Livewire TS is awesome too.....got a custom 91 performance tune from MPT, waiting to load it after the exhaust is on. And finally a 13" stubby antenna which actually has great reception.