Have you considered a good 2-n-1 pipe ? Just a thought. I have the S&S Sidewinder with a 475 cam and I love it, I run the insert that came with the muffler though.

 

Personally, I'd shitcan that tuner. If it's new and you can return it's something to consider. My first pick would be a TTS then PV. Most guys who run the dyno daily will tell you the FP3's are junk.
Just my experience and what I've heard right from a guy running a dyno machine.

 

Impressive numbers from your setup!

I'm using all the same components except using 465 cam and TTS tuner. Should be a fun ride when I get it back.

 

I have indeed. I would like to keep the duals look though if I can.

Amazing on how many reviews I read on the FP 3 that said it was great. Maybe they were older reviews and now better has emerged. I bought it new and used it already... there is no returning it or selling it... it is forever married to my VIN. Below are examples of the rave reviews... thay are a few years old now.

 

My very unprofessional opinion but just the experience of the FP3 on 2 bikes. The FP3 works well on Stage 1 but go better if your going Stage 2 and up.

 

Agree on this, I kept my FP3 to conveniently clear codes and view sensors on my phone but went with TTS to get a real tune for the cam I'm running. Not knocking revzilla because I buy from those guys sometime but I wouldn't use their video as the gospel on tuners.

 

S&S has released a dummy (aka ghost) pipe for their Sidewinder so you can get the performance of a 2:1 with the look of duals.

 

Sorry, I was wrong on the pipe size for the 2/1/2. It is actually 1.75"

 

I went with the Fullsac header pipe, Khrome Werkz slip-ons and tuned it with the TTS tuner I also got from Fullsac with a map they provided. Easy to install, stock heatshields are reused and I love the performance and sound I got out of it.