Hello all, Just back from 2 days at Watkins Glen, and my 2012 Boss is experiencing the exact issues described by Swiss Boss. I was excited when I found this thread, reading it and waiting for the solution to be revealed. Damn! Now I‘m thinking a new clutch and transmission?!! Well, those items...

Hello, I installed the FRPP driveshaft and am very impressed with the increased performance at VIR. However, have high speed, high rpm vibration issue. Most noticeable on back straight between 6500 to 6800 rpm, 5th gear, so high speed. Can feel it thru the floorboard, see the vibration in the...

Hello fellow track addicts, seeking recommendations for track only brake pads for the Boss. Been running Carbotech xp12s for some time. Really like them except for wear life. Girodisks (front only) are on order, so time is right to consider other pads. Have Vorshlag brake lines. Tire setup is...

I see your dyno graphs in this thread, but before cams. Could the graphs with the L&M cams be in a different thread? Thanks.

My 2012 Boss is 95% track car, 5% street. It’s putting down 432 rwhp with Kooks LTH, Airraid CAI, Bama tune, 3.92 effective gear ratio. I want to upgrade the cams, but would like to keep the Boss IM. Thinking of having the Boss IM ported, upgrade to a FRPP 90 mm throttle body, upgrade cams...

Hey Terry, did you settle on a FSB / RSB combination? What coilover spring rates are you running? Currently, my setup is Hellwig 35 mm full stiff FSB, 22 mm rear, MCS coilovers w 550/250# springs. 305 square Fitment. With the Boss 25 mm RSB, had a bit too much oversteer.

No, have not performed the crank angle TSB.

I get the P0010 code, camshaft position actuator error, bank 1. Car does not go into a limp mode, but I wont track the car if the code is set or pending.

So you track your 2012 Boss, had harness related issues, upgraded to the FRPP M50 plus actuators, did not do the PRS upgrade, and have not had any more harness issues? About how much track time do you have on the M50?

Great to hear about your success. Did you also do the PRS upgrade? If not, why not?

American Muscle says the M-12508-M50 engine wiring harness will not fit a Boss, only a GT, which makes no sense. So I called them and they assured me it would not fit a 2012 or 2013 Boss. I then asked FRPP and they said the M50 harness and the improved camshaft actuators will work on my VIN...

The connectors are oval shaped, so it could be the 2013 harness. I have not done the crankshaft sensor o-ring TSB.

October 2011, #2436. How do I determine if mine has the 2013 harness? If I do, what is needed? Thanks.

Reviving this topic. My 2012 Boss threw some codes a couple years ago and the fix was a connector on the engine harness. The problem cast me a full day at WGI. Threw the P0010 code last month at VIR and cost me a half day. So I’m all in on a race hardened engine harness. Is the PRS solution...

Is it a 2012 Boss Performance White hood? Are you selling it?