Our stage-2 custom tune is rated at 570HP on pump gas and 600HP on 100 octane race gas. It includes our custom made X design 2 muffler exhaust with 200 cell cats. We offer custom race gas files as well as brake boosting and launch control upon request. We strongly suggest 4.5″ Race intercoolers, and for more power upgraded VTG compressor wheels( 65mm or 63.5mm). We can upload multiple tunes via our hand held flasher purchased separately.