i disagree with you here mate , i know OBX are first copy of TODA headers and not as good but compared to price offer the best value for buck
i have noted a sizable gain in mid level range and thats one of the reasons looking for 2 jazzma exhausts to further the cause .back pressure has made a huge difference
and i think after Toda is DC sports headers are also good and you can find ones easily for 30,000 PK and new ones for 40,000 PK
the prices you quoted are on the very higher side
Toda 421 design should be around 120,000 PKR and nothing beats that
thanks anyways