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2017 renegade 570 xmr. Ordered an hmf fuel optimizer. My question is, do I need to run an hmf exhaust, or will the fuel optimizer work with others like say an rjwc slip on?
 

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All of those brand name "blinky box" tuners are just Dobeck EJKs with a different sticker on them. If you look close at the HMF, it even has the Dobeck symbol on it. The only real difference COULD be is that they set it at different base numbers when it leaves out their door. That's easily fixable in about 10 seconds.
 
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