When I bought my car, it had already 2.25" exhaust all the way back to the muffler...this muffler has rusted out. I picked up a stock muffler today and my idea was to install it...but then got to reading, will the stock 1.75"ish stock muffler cause issues? This is my daily driver, and I want to keep my MPG as high as possible..

Any opinions??


sorry wrong place to post