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Discussion Starter · #1 ·

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heartthrob has a drop in cat back looks like it uses a resonator with twin glass packs and doesn't require modifying the rear facia. You can watch the installation vid on youtube and hear it running.
 

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Have a 2L SXT, left resonator, replaced stock single exhaust with a stainless magnaflow camero muffler with two outs, replaces back panel with a new factory with two outlets, gets about 6 miles to gallon more and seems to have a few more horses.... used larger pipes and tips out of the new muffler, just a nice mellow perr.
 

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Discussion Starter · #6 ·
Have a 2L SXT, left resonator, replaced stock single exhaust with a stainless magnaflow camero muffler with two outs, replaces back panel with a new factory with two outlets, gets about 6 miles to gallon more and seems to have a few more horses.... used larger pipes and tips out of the new muffler, just a nice mellow perr.
6 mpg more? that seems like a lot of gain for a simple muffler swap.
 
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