Ya, it was a blast for a street car, I think I posted back in like 08 how I had to turn OUT the adjustable wastegate rod 12 turns to get the boost back down to the same level. This was coming from a CAS V2 FMIC, which looks to have some 3.5psi of backpressure and the tubzookas (pipes) at 3" take up more volume to fill.
No IC was the most noticeable mod I have ever done to the car, it's why I went liquid IC on this combo and try for as little backpressure in any system on the car. But twin nozzle alky caught up to me, I forgot to replace the pump after 2 years to be safe, my badd.