I am leaning more towards the coupe. Is it true that the B18 will leave very little room in the engiine compartment for work? I know the B16 fits perfect because it was made for the car, but I don't want to run into any problems having a hybrid vehicle, such as getting boltons that are made for the B18 and will fit into the Civic. The B16 has 10 less horsepower, but the B18 is only a few hundred extra dollars on average. Anybody here with a GSR swap that can help????