@Comedian @Flytvr Which if you have the pennies is why I suggested the Quicksilver route I fully accept that, depending which of the two routes one went with their systems have been presumably accepted by Lexus as on my RCF list two cars have been sold through the dealerships one definitely had the Quicksilver system still on it but I was unable to establish whether it was the cat back or switchable.
Yes it's a lot of money the cat back is a straight forward bolt on and off unlike the cutting and sleeving you had on the IsF, so obviously you would have to establish with Lexus warranty first pressure issues with a cat back are nothing to be concerned, as long as all the cats are in place which of course they will be.
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