Hey guys, I’m new to the forum. I have a 2015 can am xmr 800. I recently put a two Bros slip on exhaust. After that at idle it seemed like it was struggling and also at high rpm. I bought a power commander fc programmer. I dowloaded the two Bros tune they had. It runs smooth at idle now but when I hammer on it it bogs down, sputters, pops and backfires at about 6000 rpm. Could it be running to lean or rich? I didnt pull the plugs being that its pretty new and i dont think thats the issue. can anyone please help me on how to fix this issue. Any comments or advice is greatly appreciated.

Hey guys, I’m new to the forum. I have a 2015 can am xmr 800. I recently put a two Bros slip on exhaust. After that at idle it seemed like it was struggling and also at high rpm. I bought a power commander fc programmer. I dowloaded the two Bros tune they had. It runs smooth at idle now but when I hammer on it it bogs down, sputters, pops and backfires at about 6000 rpm. Could it be running to lean or rich? I didnt pull the plugs being that its pretty new and i dont think thats the issue. can anyone please help me on how to fix this issue. Any comments or advice is greatly appreciated.