I bought mine used along with the shorty H. The headers are excellent! I have 3/4" clearance by the steering shaft. The install was a miserable experience. The car has gained across the board and has amazing sound with some throttle past 2k! You will absolutely love it! I know I do!
yes, um, stock headers and a clogged 4 cat h pipe! I probably gained 35 hp and who knows what torque! hahahaa, sorry I didnt mention that. I think the longs will only improve things for you as well though