Magnaflow installation question.

[super t]

I've just got my magnaflow cat back exhaust sys. today and Iam ready to installed it I think i recall reading in another post that you have to disconnect the battery is that right? and if so why?

[MrAC1980]

Super, no idea why you'd have to disconnect the battery unless you were welding the exhaust on the truck. Only suggestion I have is use some WD 40 or some other sort of lube on the rubber bushings. Simple install shouldn't be that hard, have fun and enjoy...

[super t]

All right , thank you, I did not wanted to messed it up ,well is too late now and I am working tomorrow so it's gonna have to wait 'till sunday, I cant wait to hear how it sounds.

[HAWAIIRL]

The only reason why the battery disconnect is recommended is to ensure no problem with the vehicles electrical system when welding. Most muffler shops won't do it, but factory service manuals will recommend disconnecting the battery for many different item, even when it does not seem necessary. Another reason might be for the ECU to reset the settings if they system could change; applies more to air intake changes I think. No problems with mine when the exhaust was changed out.

[ChiTownRidge]

Originally Posted by MrAC1980

Super, no idea why you'd have to disconnect the battery unless you were welding the exhaust on the truck. Only suggestion I have is use some WD 40 or some other sort of lube on the rubber bushings. Simple install shouldn't be that hard, have fun and enjoy...

Yeah, WD 40 is highly recommended on the rubber bushings. Its nearly impossible to get them on/off with out it, but using a little lubricant makes all the difference.

[super t]

I just installed the exhaust and as the instructions said, I disconnected the battery before removing the old one. It sounds great, but it doesn't feel like it has more power or torque. Has anyone run theirs through a Dyno test machine? If so, what was the outcome? Was there any gaines in power or torque?

[RidgeLI]

I do not believe you will / would experience any noticable increase in horsepower etc. Changing out the exhaust may look nicer and sound "badder" than the stock pipes, but the performance increase would be minimal at best.

RidgeLI

[MrAC1980]

The Dyno guys only tested it after Intake, Exhaust and ECU upgrades, not in between. And yes after all three mods, you WILL feel the difference.