Quote:
Originally Posted by oldman
Stock the GTO did not have an X right? It looks like the aftermarket systems put the X far back, like the 6th gen. To me this is more of a factory sound mod vs a performance (extraction) mod.
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The GTO had a resonator just behind the cats where the 2 pipes came together. It was the perfect place to put the X-pipe and I replaced the 4 chamber mufflers with Magnaflow 14616 6 inch glass packs.
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2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles...
2012 Yukon XL Denali w/ 6.2 AWD