Here:

https://www.clublexus.com/forums/is-...sition-10.html

Hi Lou I'm trying to find the picture of your ISF especially the rear end tail light one i can't find it cheers Neill.

Don't really know the answer to your question because I never ran without cats. IMHO, running catalytic converters is the socially responsible thing to do.

@sickpuppy Hey man I am currently running ppe catless headers to a full Joe Z catback and a titanium intake elbow with drop in high flow filter. I see you mentioned you are running welded in high flows .. What are your thoughts does it really tame the sound all that much. low key i love the way mine sounds but i would consider welding in high flow cats if it would clean up the engine note a little bit as well as give me a little bit more induction noise. Your feed back would be much much appreciated!