i doubt there are any bolt on kits that arent from greedy and cost a fortune,i could be wrong tho, the benifits are the following 1. lower intake temps= more hp and less chance of detonation 2. better motor response due to better and more modern desighn of the intrcooler 3. better fuel economy 4. way better looks 5. more reliable imo
here are a few sites i know for a spearco stly (our intercooler whith both opening on same side)
http://www.treadstoneperformance.com...A+Intercoolers this is a very well know brand a bit pricy tho
http://www.siliconeintakes.com/produ...19c62806802119
heres a cheaper alternative( a senior member posted about this site on a thread a long time ago cant remember who it was tho)
now whith both you will have to costome fab some things to make it fit but they both shoulkd fit in the factory space