Hey guys, 
  
I recently had a pair of Berks Hi-Flow Cats fitted to my HR Z. Since then, when I go full throttle, as I found at Santa Pod recently, I get a judder. It's like the car is trying to stall. It'll do it maybe three times then clear and full power returns. 
I thought it could be the cats needing to settle in, but it's been happening a few weeks now. 
Would a simple remap cure this? 
  
Thanks, 
  
Scott 
  
  
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