throttle bodied mk2 172
hi guys,i have 182 exhaust manifold and a high flow cat with 2.5 inch exhaust system on my 172.but i am still using remus backbox which build for stock clio 172 which is 2.1/4 exhaust sytem.so it is not a straight through muffler.the question is do i need a 2.5 inch straight through muffler on my system?if it is yes what brand?thanks..
