Basically, since doing all the mods to my car when i come to around 2,000rpm in ANY gear. It feels lumpy or its missing.. I cant really describe it. Imagine your driving down a DEAD flat road, and all of sudden if feels like you hit a small bump in the road.. That's the only way i can describe it. I have changed my HT leads to blue magnicore ones, problem still persists.. Do you think its boost related? As i can hit fuel easily, but im plodding to and from work currently until i port my wastegate, fit my HKS actuator and my boost controller. Is this potentially something bad with the engine? It's done 83,000km's and was bog standard until i modified it. Below is the specs; HKS Decat HKS Hi Power Exhaust FMIC Air Filter Relocation Baileys dump valve Standard Actuator CT9 Turbo Standard Mani Or im worrying its to do with fueling, as i have so much air, and not enough fuel potenially? Just dont want to risk anything that could damage the engine. Sorry if it seems hard to diagnose, it's a weird problem to describe. Just juddery around the 2k rpm area.. then it's fine!