Fits: GDA04 (04 WRX), GDA02 (02 to 03 Impreza Sedan), GDBC (04 STI), GGA (02+ Wagon).

GT Spec GEN II exhaust manifold is the revision of the orginal. The revolutionary velocity chamber design and the high quality finish are unchanged on the new generation as we strive to bring the best value to the customer. The flanges are completely redesigned, the finish is upgraded to stainless steel and now come with a three bolts flange between header and uppipe to help prevent leaking between the up-pipe and the header. The EGT bung is revised as well. Detachable up-pipe is included. The up-pipe comes with a velocity chamber inside the pipe. This special feature is structure for increasing airflow velocity. This full stainless steel header and uppipe is covered under GT SPEC's 2 years warranty. The complete package includes header, up-pipe, block gasket x2, and upipe gasket x1, turbo to downpipe gsaket and turbo to uppipe gasket.