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hutch
September 29th, 2009, 07:20 AM
i have a 2004.5 lly. i have six inch stack but with a stock downpipe and cat. i ordered a 4 inch down pipe and was wondering if it will throw codes? any help? thanks
Nemo
September 29th, 2009, 08:03 AM
No it wont, well at least mine didnt...
hutch
October 3rd, 2009, 03:55 AM
ok thanks nemo, i have heard that the llys dont need them but at the same time i have heard that they do so ill just give it a try. thanks