I have a 2011 legacy that is a single exhaust and I want to make it a dual exhaust. I have a dual exhaust from a 2008 legacy and was wondering if this would fit or could be made to.

5

Asked by Feb 18, 2017 at 04:20 PM about the 2011 Subaru Legacy 2.5i Premium

Question type: Car Customization

If it could be made to fit, anybody know how much work it would be to fit it? Trying to avoid paying an uber amount of money for an exhaust.

2 Answers

27,955

You have a 2.5 4-cylinder engine, you don't have dual exhaust, can only use the dual cat-back setup, if that is what you want. Any muffler shop should be able to put this together, without breaking the bank.

5,900

Yes, you can do it, but be sure to use the aftermarket gusseted rear Y pipe instead of the OE to ensure longer life of the corrosion-sensitive crotch. In other words you're asking for trouble, with no perceivable gain in performance! Only the turbos or H6 benefit from twin mufflers slightly reduced back pressure. But if you insist you can get aftermarket rear Y for about $200, plus $100 each rear muffler, plus about $40 in gaskets. So figure $600 installed inc an hour labor. Absolutely worthless mod....

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