Should I hollow my cat?

[dagen_1]

Or you can run a high flow cat that will give you the sound and still keep it toned so it isnt raspy or poppy like you are trying to avoid.

I run a THunderbolt cat and love it with my LT's, custom mandrel y pipe, and single 3" piping.

i like the way yours sounds... :Waytogo:

 

[jdyates]

Mine is hollowed with a pipe through it, apparently. Sounds great with no muffler and stock headers. I think the piping is 2.5" until after the cat, it goes down to like 1.5" for about a foot

 

[oohunter04oo]

a hollowed cat and a straight pipe do sound a little different. hard to explain the difference but a straight pipe does sound better.

 

[jdyates]

a hollowed cat and a straight pipe do sound a little different. hard to explain the difference but a straight pipe does sound better.

Does mine count as straight pipe since it's got a pipe through the cat? Haha

 

[oohunter04oo]

Does mine count as straight pipe since it's got a pipe through the cat? Haha

thats a good thing to do if your inspection station looks for a cat. lol

 

[jdyates]

thats a good thing to do if your inspection station looks for a cat. lol

Texas requires to have a cat. BUT they dont do emissions testing, they usually just peek under to see if you have one, if anything.

 

[oohunter04oo]

Texas requires to have a cat. BUT they dont do emissions testing, they usually just peek under to see if you have one, if anything.

same in Louisiana. but i know the guy that inspects my trucks. so he don't look!

 

[jdyates]

same in Louisiana. but i know the guy that inspects my trucks. so he don't look!

My best friends dad used to do inspections before i knew him. I wish he still did. They treat me like a son and he has worked on my truck more than once without charging me a penny.

 

[GMCTRUCKS]

Hey guys since here in Texas they do emission test so if one doesn't have a Cat it won't pass right? I know with my free flowing Cat it always passes I don't think it will pass if a pipe is ran though the Cat not doing nothing.

 

[shelbyt.67]

Depends on how well yer motors runnin. I've had em pass with a hollow cat. It iz kinda iffy tho. 50/50 shot. Nowa dayz I just put my cat back on fer the test and remove it after.