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  1. Grom Performance
    Hey guys, I'm new to the forum and this is my first post so I apologize if this topic has been discussed. I did a couple upgrades to my grom all at once and I'm not sure what couldve went wrong. I put in the high rpm/colder spark plug, tbr full exhaust and did a valve adjustment on the same day...
  2. Grom Performance
    Got my TBR full exhaust installed. Super easy install. It is definitely wayyy louder than stock. I don't think the video does it justice. I feel a lot safer now that cars know I'm there.
  3. Grom Builds
    Hello. I just picked up a black Grom over the weekend and am looking at replacing the exhaust with a Two Brothers full system. I have seen the videos of the exhaust on You Tube but it is hard to actually tell how loud they are. I am looking for input from anyone that has the TBR system and if...
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