Hard time going above 55

[robbie95]

20 hours ago, Eagle said:

The cat doesn't mate to the tailpipe, it goes into the muffler.

 

Don't remember for certain, but I think the bolts I used are 5/16x1.5 or 5/16x2.

there is a pipe and a weld in between my muffler and cat as it sits right now, so i'm guessing its been tampered with?

[Dzimm]

On 5/20/2018 at 6:33 PM, robbie95 said:

what do you guys think about running straight pipe? is it really obnoxious?

edit : just went ahead and ordered what I need, cat, clamps and a new o2 sensor, anything else you think I'll need? will a cutting wheel on a grinder suffice or should i borrow a sawzall?

I would borrow a reciprocating saw for sure.  If you can't get one, you can do it with a cutoff wheel but it's a pain.  

[Eagle]

3 hours ago, robbie95 said:

there is a pipe and a weld in between my muffler and cat as it sits right now, so i'm guessing its been tampered with?

 

The factory cat has an outlet pipe that exits the cat, then necks down from 2-1/2" to 2-1/4", at which point it enters the inlet of the muffler. The factory used a muffler clamp on the muffler inlet.