I just emailed Muzzy about their slip on tips for the Maverick. I asked them if I had to run their tuner with the slip ons. Dave said yes I did. But that really doesnt make any sense to me. With slip ons being AFTER the stock O2 sensors, shouldnt I be able to run just the Slip ons with out the Fuel Tuner? I run a Looney tuned slip on tip on my XMR and it does just fine. What do you guys think? The exhaust to 650.00, the tuner in 275.00 .