Hey guys, Before I ask my question, I have used the search feature but couldn't find my answer. It's probably there but I can't brag on my research skills. I have a 2007 StreetBob. Stock aircleaner and Rush slip on's. My question is, will Dobecks TFI allow me to run an aftermarket air filter such as a K&N and eventually put a set of full exhaust on without taking it to HD? Thanks in advance and I'm sorry if this specific question has been asked. One more thing, does Dobeck still have their $50 off offer for forum members right now? I have PM'D the Dobeck guy a couple days ago but he probably just hasn't had time to answer. As always, any info would be greatly appreciated. It's really cool that this forum is so helpful and friendly, I've found answers to just about all my questions on here. Love it!