stlxj91

Looking for a new cat and exhaust for 91 xj. Any for sale? Or any ideas on a good deal with good performance and sound??

Metlic53

i bought my magnaflow cat on ebay for like 75 bucks and a flowmaster super 40 for 80. i have 2.5 " exhaust all the way out the back. make sure the cat comes with the plug for the o2 sensor. had mine for a little over a year. working great.

http://www.ebay.com/sch/i.html?_trkp...&_sop=15&_sc=1

http://www.ebay.com/itm/FLOWMASTER-S...item5adc4c1a61

XJeepWerks

Check out www.performance-curve.Com or contact user "mudfrog" here on the forums. He sells great kits for xj's.

By the way.... with your '91 you don't have to worry about the o2 sensor on the catalytic converter. That's only for obd2 vehicles ('96+).

stlxj91

Thanks i was looking on ebay and found a whole bunch of nice cats for a good price. I just messaged mudfrog to see whats hes got

XJeepWerks

Mudfrog is the owner of the performance curve website. You can check out all of his products there.

stlxj91

Yea i was just browsing it, so far that looks like the best route gonna order everything this weekend, ill post some pics when its on thanks

XJeepWerks

No problem. The thunderbolt spun metallic catalytic converter is what mudfrog recommends. I have it ln my rig with no issues. Just be aware that the exhaust kits he sells don't come with hangers welded on.

stlxj91

Oh ok, thats no problem ive got a mig welder at my place and ill probably just re use the old ones

XJeepWerks

Alright. He sells hangers aswell if your interested. Would make it a real clean install.

stlxj91

Oh ok ill check it out, im going with the magnaflow heavyduty spun converter and the 4in can with 2.5 inlet/ outlet

XJeepWerks

Have you seen his 2.5" magnaflow catback system?

I was going to get the magnaflow converter but mudfrog recommended against it. He said the thunderbolt spun metallic cat was much better.

stlxj91

Oh really? Whats the difference between the thunderbolt? No i didnt see it ill check it out

XJeepWerks

I'm not sure exactly what the difference is, but he did say it flows better than the magnaflow unit.

XJeepWerks

Here's a link to the catback system I was referring to. I am running this exact kit on my rig.

http://performance-curve.com/84-01ch...lpipe-1-1.aspx

stlxj91

Lol yep i was just looking at that and the flowmaster one it has, but im gonna go with the magnaflow. Does everything line up underneath pretty good?