Sam volunteered to be the very first CT4-V Blackwing Corsa exhaust customer and was excited to have us complete some additional modifications at the Tapout shop. We appreciate him allowing us to have his car for several weeks while Corsa got the first cat-back system installed on his car! After we got his car back to our shop, we installed our intercooler fill/bleed kit, a JB4, and colder spark plugs.
His baseline whp numbers on our DynoJet were 382 whp which is on the lower end of what these cars typically make from the factory, but we have seen other cars in this range as well. After installing our parts and massaging the JB4 settings on the Dyno, Sam’s car put down 446 for an impressive 64 whp gain!
Not only that, but the Corsa exhaust looks absolutely fantastic, and sounds even better!
