[Chris Canning]

Originally Posted by MillerTime

Will a cat delete pipe like this one on ebay work with the stock mufflers and without a special ECU chip? I would think it would help the sound and lessen the weight.

BMW R 1100 s Catalytic Converter Cat Eliminator Decat Mid Pipe Exhaust CA11 | eBay

I ran an open pipe/SJ filter/Lennies Induct for probably 4/5 years,it will have a spot at around 4250 as flat as a witches tit but you can jump across it no probs,but then a PC came out and it was happy days!!