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2012-2013 Boss 302 Mustang
Side pipes and Chambered exhaust
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<blockquote data-quote="KBBoss302" data-source="post: 16091771" data-attributes="member: 135228"><p>No restrictors on mine. Tried I think 7/8" ones and then changed them to fully open and it is a nicer sound. </p><p></p><p>The 2011/12 GT500 axlebacks are single exits. If you want to try any of the 2013/14 GT500 quad tip axlebacks (OE or aftermarket), you can just buy this factory lower valance to replace the one on your Boss:</p><p> </p><p><a href="https://lmr.com/item/LRS-17828ABB/GT500-Rear-Bumper-Diffuser-Valance-Mustang-13-14" target="_blank">Mustang GT500 Rear Bumper Diffuser/Valance (13-14) 3Z17F828AB</a></p><p></p><p>And here is a FRPP kit with OE GT500 quad axlebacks and the lower valance:</p><p></p><p><a href="https://lmr.com/item/LRS-17828ABK/2013-Mustang-GT500-Style-Rear-Valance-Axle-Back-Kit" target="_blank">Mustang Axle Back Kit – GT500 Mustang Axle Back Exhaust</a></p></blockquote><p></p>
[QUOTE="KBBoss302, post: 16091771, member: 135228"] No restrictors on mine. Tried I think 7/8" ones and then changed them to fully open and it is a nicer sound. The 2011/12 GT500 axlebacks are single exits. If you want to try any of the 2013/14 GT500 quad tip axlebacks (OE or aftermarket), you can just buy this factory lower valance to replace the one on your Boss: [URL='https://lmr.com/item/LRS-17828ABB/GT500-Rear-Bumper-Diffuser-Valance-Mustang-13-14']Mustang GT500 Rear Bumper Diffuser/Valance (13-14) 3Z17F828AB[/URL] And here is a FRPP kit with OE GT500 quad axlebacks and the lower valance: [URL="https://lmr.com/item/LRS-17828ABK/2013-Mustang-GT500-Style-Rear-Valance-Axle-Back-Kit"]Mustang Axle Back Kit – GT500 Mustang Axle Back Exhaust[/URL] [/QUOTE]
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2012-2013 Boss 302 Mustang
Side pipes and Chambered exhaust
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