Modified DC2 Integra:
Fast yes. Not very loud (exhaust note) despite catalytic converter delete. Exhaust is otherwise stock. (I want a fun car, not a cop magnet).
Free flow intake does make a lovely howl though.
Interior noise? Somewhat elevated due to stiffer suspension, larger wheels (plus 1) and very rigid tires. Also, noise abating materials have been removed from interior.
Thick aluminum ASR rear crossmember brace with poly mounted 24MM hollow swaybar is noisy depending on ambient temperature but a small price to pay for the quick and neutral handling and response.
Modified shift linkage with poly mounts make shift inputs quite audible but the solid, fast and tactile snap is pleasing.
Somewhat tiring to drive long distances. (The car is not a proper grand tourer), but the nearly perfect dynamic balance, exceptional roadholding and near telepathic lane shifts make it totally worth it.
Is it a hot rod?
Technically yes as the classic formula of power boosting combined with mass reduction has been applied. Also, in hot rodding tradition I have made as many of the modifications as possible myself.