The redline uses a rather small turbo which is considerately maxed out. I'm not sure of the brand but I'm sure its gm made not a garret if that's what your thinking. The motor is actually similar to the evo. 4 cylinder alluminum block forged crank and rods. Open deck I believe. There is a diagram @ the top in the sticky I believe under gxp info. The car is running 20psi which is also like the evo. Still very high which is why I'm thinking the turbo is maxxed. I'm guessing the motor can handle a bit of power. I think stock turbo maybe 300rwhp tops. Don't forget the 260 is at the crank. I think w/ a new snail this motor is capable of 400rwhp. The limiting factors will be the trans and the direct injection fuel system and what they can handle. I can see you are interested in modding the car as am I. This won't be that mod friendly of a car just guessing that the aftermarket will take years to find it considering the buyers group is a bit older and more pure than us well @ least me. Hope that helps feel free to ask any questions u may have... James