excelsior motorsports LSX performance

Factory Five
GTM Supercar

Jim's Factory Five Supercar Dyno Tuning.

Jim's Factory Five GTM Supercar

Jim brought us his GTM Supercar for a custom performance tune. The GTM is a super light (2350lbs) kit available from Factory Five Racing. Don't think for a second that these kits are like others on the market. The GTM's only engine options are from Corvettes. This particular model has an LS6, though we have seen them with engines as large as a 427cid LS7! Coupled with a full tube chassis and coilovers, this vehicle will pull 1.05G, run 11's all day long and stop faster than a Ford GT.

gtm supercar stage 1 performance package