will post graph tommorrow when i can use a scanner

i dyno'd at 285hp and 327tq with cutout closed and 303hp and 343tq with cutout open

just bolt ons shorties, cat!, moroso cai, and free mods.

i dyno'd on a dyno jet but will probably be doing another dyno on the mustang dyno we have in class sometime within the next month.
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Wow the cutout made a big difference and speaks volumes of how restrictive your catback is.

What catback do you have?
Where did you put the cutout?

 

Stock cat back according to post.

 

its a duel chamber spin tech muffler and the cutout is right before the axle. i didnt really know if it made a difference in hp because when i went to the track i did about 6 runs, 3 with the cut out on and three with it off and i ran practically the same times. 13.8 with it on and 13.7 with it off. but 18 whp difference lets me know that ill be getting an electric cut out next

 

i was logged into my buddys account when i posted that last one haha

 

refer to first post

 

Get some DR's, you should run 12.5x easy at that power level.