When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Selling the old black ones - still in good condition. The shiny ones are installed on my GT - I think they may have been the last ones Dave made before fabricator pulled the plug.
Yes those are the Factory GT resonators, smaller than the stock S4's and a direct replacement.
I have a pair and was going to replace the larger ones that came stock on my 86.5 and haven't a chance to do so, I've heard there is a performance boost, maybe someone else has done it already.
So those will work for anyone w/ an S4 and or an 86.5.