I have the Magnaflow #15789. It all goes in the factory location and hangers, just bigger pipes, sounds good too. Hope your not doin exhaust for MPG? It DON'T Help! Runs better and sounds good. All stainless.

I have the predator U7193, its a 2.10 and I have a 2005 Chevy Silverado2500 HD 4x4 Gas 6.0L with auto and 4.10's. My question is can I get as much out of my Diablo as I can a mail order custom tune such as a BlackBear for example. I already have a 87 octane tune in now with my programmer and have ...

I'm going to try the cleaner hope this weekend and will let you know how it works. It was 94 degrees today and it ran fine with a IAT 155-165 while sitting and about 85-90 while moving. The cold air kit from the lower front of the truck really works good. Also going to put exhaust on it in 2 weeks.

Yes, I even took it back to the dealer and they couldn't find anything wrong with it. They said if it did it again just stop in, but I don't want to be stoppin in with a performance tune in place to mess up my warranty.

First off it runs great. I have no codes when the factory tune is in but when I have the 87 octane tune in it will develop a evap failure code after a week or so. Go back to factory tune and its gone. Check engine light came on just today. Evap control leak detected (0455)
(2)Haven't tried 89 yet ...

Heres my update: I switched to Sunoco 87 and still the Bad detonation on the 87 octane tune. I set the slope at -5 like monte had said. It starts detonating at 3000 rpms. It runs great but I'm a bit confused on this matter. I only have 31K on it. I think I might try 89 octane to see if it goes away.

Shell is what I use, maybe I'll try BP now along with the LFTF's set right and the tune reinstalled. Thanks for the response, I'll let you know after some more testing.

ok I'll give it a try and let you know. Thanks monte

I have 05 2500HD 6.0 Gas and the U7193. I had the 87 octane tune in and had really bad detonation at WOT. I put the factory tune back in and no problem. I have since logged my LTFT's. Bank 1 is 4.96 and bank 2 is 3.57. This is done at 2100RPM in fourth gear at 65 mph. Should I go -3 on the slope and ...

Hey everyone, new to the site today. Got my Predator couple of days ago and haven't put a tune in yet. Going to Sunday, just checking what everyone else is doing. I have a 2005 2500HD EXT cab 6.0L w/285/75/16 otherwise stock for now. On the gas mileage thing I've only had the truck two weeks and I'm ...