# General PC3 Question

**URL:** <https://forums.speedlife.net/t/general-pc3-question/257557>\
**Category:** Shift518 Automotive\
**Created:** [March 28, 2011, 2:23pm UTC](https://forums.speedlife.net/t/general-pc3-question/257557 "2011-03-28T14:23:38Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![usmc2801](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/usmc2801/32/6387_2.png) [@usmc2801](https://forums.speedlife.net/u/usmc2801)\
**Post date:** [March 29, 2011, 6:02am UTC](https://forums.speedlife.net/t/general-pc3-question/257557/13 "2011-03-29T06:02:30Z")

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> [@RIP MARIO \*SHOWTIME69\*](https://forums.speedlife.net/t/rip-mario-showtime69/40655/76):
>
> Is there someone in the area you would recommend to tune a 636 motor? I ask because I have one going in something in the near future and while the motor is stock, the exhaust is going to have to be modified a bit. Will still be using cycle parts and a slip-on or similar motorcycle can, but have to change and reroute the midpipe, which I’m sure is going to screw with the AFR’s on the thing.

Are you going to be tracking the bike? And yea if you change the mid-pipe I would highly recommend a good pump gas tune and then on track days run race gas on that tune, yes you will lose a little HP but you will keep the combustion chamber cooler which obviously you know is much better for the motor.

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