Already have a Black bear tune question...

[RogerM]

I have a stock 2001 Tahoe and Justin already tuned it. I was wondering what type of gain a 15666 Magnaflow cat back setup would gain me? Would it be more than the advertised 10hp? Or does the stock exhaust do a good enough job making the upgrade mostly ear candy?

Thanks and still loving the tune a year later!

 

[blueflamed03]

IMHO, just swap the muffler, you won't notice the gains they say for the whole catback, the piping is more than enough stock, want the sound, just swap mufflers. Again, only my $.02

 

[JennaBear]

The Magnaflow will yield some gains, but I believe the 10HP advertised is a big of a lofty goal.

 

[RogerM]

Ok thanks for the replies. I will just leave it alone then since there won't be substantial power gains.

Thanks,
Roger