98' Chevy Silverado exhaust progression

this is a follow on from my first video. this video has that set up plus my new setups. currently the truck has two Magnaflow XL's at 2 1/2" each, x-pipe, no cats. i ended up running pipes out the back because i couldn't get rid of that bad rasp you hear in the dumped clips, sounds much better. i getting a magnaflow x-pipe installed in place of the other one, the other one is not a truflow design, and also getting a set of pacessetter long tube headers. let me know what you think.

Category:

Autos & Vehicles

Tags:

• 1998
• Chevy
• Silverado
• Z71
• 4x4
• extended
• cab
• Magnaflow
• XL
• three
• chamber
• x-pipe
• 5.7
• 350
• vortech
• chevrolet

[coreymurray8]

and i have the same set up as of now true duals there was a previous jimmied eshaust so i cut it off about 28 inchs from the flange after the cats what i was wanting to do is maybe shorten it up sense i have 45 inch overall length glasspacks so there is more room what i want to do is put 2.5 pipe with the cats and o2s in there correct places change to the different style 2 bolt flanges into an x-pipe to the glasspacks and out with 2.5 pipe and 3.5 or 4 inch tips what do you think is it possible

[javojjaaf]

@coreymurray8 send me an email address and ill do a video explaining the system and mods you can do from front to back

[coreymurray8]

what is a crossover then im kind of confused i have the same exact truck and want to do a complete system but im not sure about the whole o2 sensor stuff

[javojjaaf]

@coreymurray8 a cross over is put down stream of the cats and after the O2's. its use is to equal exhaust pressure in the system. if you have a y pipe before your cats, then you dont have the same factory set up i had. i had two separate pipes going into two separate cats and they went into the factory muffler separately. if your gonna do the entire system they will add new O2 bungs (the threads they screw into) on either side of the cats, and the number of O2's depends on the age of your truck.

[coreymurray8]

did the pipe size on the y-pipe change in size and does that affect the o2 sensors?

[javojjaaf]

@coreymurray8 when i changed to my new tru-flow x pipe i went from 2 1/4 to 2 1/2 inch, and the o2's are not messed with when adding a cross over unless you put in in the area they are in

[DskTwreckz]

That bad rasp is because they took off the resonator

[coreymurray8]

sportmaxx8@yahoo.com thats really cool of you thanks man

[coreymurray8]

ok so i have the exact same truck im only 17 and im new too this kind of stuff like i have done other exhaust on older trucks no problem i was just wonder since i need new cats i was thinking maybe just redo the entire exhaust and make it 2.5 inch pipe from the manifolds back but seeing how you somewhat showed it what i thought i saw was no cats an x-pipe and and straight pipe i want to do something like that im just not sure if i could with the electrical bs

[javojjaaf]

@oldawgnewtrikz check out my newest video, i added 4" tips and changed the x pipe to a better tru-flow