Suggested Performance Mods
Some guys are having problems with the 3923's. They work good to eliminate ping on a poorly maintained engine, but if your stuff is healthy, or you are modded a good bit, you may want to stick to the stock heat range. I had a low end stumble that I cured switching from 3923'sto NGK's of the proper heat range. Can't really say if it was the heat range or the brand though.
ORIGINAL: RM_Indy
Link below for the cat/ypipe at summit.
http://store.summitracing.com/partde...p;autoview=sku
Link below for the cat/ypipe at summit.
http://store.summitracing.com/partde...p;autoview=sku



