98 GSX exhaust
Ok so from what I have read on the exhaust specs of my car... Stock exhaust piping is 2.5", correct?
To pass inspection, i needed a new flex pipe and a new cat(both rusted out)... I tell my local muffler shop that I want it replaced and money wasn't a problem, just fix it.....
Well he did... with a standard weld-on cat and a 2" flex pipe! How bad is this hurting my engine and turbo? They are no where close to the size of the OEM exhaust pipes