Quote:
Originally Posted by Twix
I tried a 200 cell on my X1 and it threw cat efficiency codes. Better off either going cat-less or just keeping it stock.
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What brand catted DP did you have on your X1 ?
I'm using BCS 140mm catted DP for 1.5years + here in the UK and its superb. Bigger body means it gives away v little in terms of flow to cat-less DP, sounds superb, better throttle response, legal and copes with higher boost JB4 np. Whats not to like !