Me and my friend were driving along tonight, we floored it through 3rd and 4th twice then drove slowly on icy roads when hes car gradually started to lose power and torque. The car is a 1990 honda civic si with a d15b2 block, d16a6 ported head, intake and header on stock exhaust. He thinks his exhaust clogged up and it does need to be changed, there are 2 tiny holes in the axle back. Even if you block the exhaust tip the engine doesn`t drop in rpm or nothing, it doesnt even seen to matter. However I`m pretty sure the holes were there before tonight.

 

no one?