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JT Factory
Compatibal vehicles
- For Jeep Wrangler 2004 4.0L
- For Jeep Wrangler 2005 4.0L
- For Jeep Wrangler 2006 4.0L
Fit for Jeep Wrangler 2004-2006 4.0L Catalytic converter
High Performance catalytic converter since 2007
- JT Cataltic Converter for Jeep Wrangler 2004-2006 4.0L
- Designed to Keep the Check Engine Light off and Fix error code P0420
- Stainless Steel 409 shell, High flow honeycomb ceramic , coated with a higher dose of precious metal rare earth coating. Ensure longer service life.
Coating Workshop
We focus on core technology - we develop and produce the core components of our own catalytic converters, and maintain their performance similar to the original factory products.
Automated Robot Production
We use 3D scanning and modeling technology to automate laser welding with robots, ensuring stable and high-quality products.
Million Square Feet Scale
Our factory has a factory area of 1076391 square feet, over 500 employees, and a production history of 20 years. Having sufficient scale and experience to bring you the best products.
richietiroc1
Reviewed in the United States on May 21, 2025
Bent wrong was hitting trans heated it up and bent it to clear then it was to low couldn’t put crossmember back up that’s when I said for get it took back apart and put old system back on took to exhaust shop this was on a Jeep wrangler 4.0 sent it back hopefully get refund
Eric A.
Reviewed in the United States on September 17, 2024
I was worried about a aftermarket Catalytic Converter with fitment but it was boxed very well and to my surprise it fit perfectly.
Adam
Reviewed in the United States on August 11, 2024
No fitment or alignment issues with my 05 TJ Rubi. I was missing two bolts/nuts/springs for the manifold mounts but I reused the original bolts since they’re still in great shape. Had to get creative with my floor jack, putting pressure in just the right spots while torquing the clamps & all the bolts so everything hangs free without contacting the engine block, front drive shaft, and transmission plate.Pick up a 2.5” exhaust clamp from an auto parts store, the one supplied with this kit is weak and stripped with minimal tightening.When everything is installed, go for a little drive so all the preservative coats/oils and moisture evaporate off, it’s going to be smokey and smelly for the first 5-10 mins of running.Might as well do your O2 sensors too while you’re doing this!
tradereds
Reviewed in the United States on December 5, 2024
Incomplete
Jeffrey r stutzman
Reviewed in the United States on November 2, 2024
Please Read, Even though the kit came with the wrong header flange gasket and bolts and the wimpy exhaust U bolt they could have kept I feel it was still money well spent. I went and bought a U.S. made heavy duty U bolt, 4 grade 8 bolts and lock nuts and used the old flange gaskets by applying Permatex Exhaust Sealant to them and I also did the same for the exhaust pipe joint assembly. When you join the rear cat to the header pipe take a small drill metal cutting wheel and cut a 1 inch slice in the outer pipe of the cat. This will help it fit together tighter when you use that heavy duty U bolt. Cut the outer pipe in the middle and do not go to the end of the outer pipe. This makes for an awesome tight union that will not fail while rock climbing or trail riding. You also could weld it together if you choose to. I think it was worth the money I paid for this new exhaust system. And like always as an Ole' U.S. Marine, I always Improvise, Adapt and Overcome any and everything in life. Enjoy! Semper Fidelis! OOO-RAH!!!!
Heather Buschlen
Reviewed in Canada on October 31, 2024
I am missing 2 bolts 2 nuts and 2 spring. I have already tried Autoparts store and they don't have the bolts.I would like to get the bolts
fishingsml
Reviewed in the United States on October 23, 2024
Worked well- also fixed my problem. Buy new oxygen sensors if considering
William C. Zahn
Reviewed in the United States on October 23, 2024
Matching up perfect
The Jetsons
Reviewed in the United States on October 14, 2024
The pipe routing (especially the lower bend) is about 1" out and is getting hit by the front drive shaft u-joint of our 2006 Rubicon. Not enough to bother trying to return, but will be on the exhaust shops to do list to address. Other than than, it's a fantastic kit and really well made. I would certainly recommend this more affordable option compared to the high cost OE offers.
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