Reviews for MBRP S5512409 XP Series Cat Back Exhaust System in T-409 Stainless Steel for 97-99 Jeep Wrangler TJ with 2.5L I-4 & 4.0L I-6 Engines

Installed a couple years on 1997 TJ 4.0. It is not overwhelmingly loud but has a fantastic deep growl to it. Probably the best sounding cat-back you can get for a tractor motor like the 4.0! I don't know if it will let me add a video, but I'll try anyway.
(PRO TIP: buy the cheaper chrome one and paint with matte black header paint from your local auto parts store, looks fantastic)

Quality price and opinions

This is a great exhaust system. It’s the perfect sound and is well made. I already knew what I was getting because I’ve had an MBRP system on my diesel truck for years. It is not too loud and the price was reasonable. Easy to install.

Replaced my stock muffler(97 TJ-2.5L). Fit perfectly and was able to install in an hour. I cut out old muffler and this fit in its place with no issues. Catback system sounds great, it added a throaty sound to my 4 cylinder. Definitely recommended if you are in the market.

I recently replaced my old stock exhaust system and used this for the cat back section. Overall I'm quite happy with it. Although it hasn't been on for long, the fit and finish are good and I have no reason to think it won't hold up well. Installation was simple and the provided instructions are helpful.

The exhaust note is definitely deeper than the stock setup, and to be honest it's a little louder than I'd like. It's certainly not wake-the-neighbors loud, and I don't feel the noise is intrusive while driving, but it is noticeably louder than stock. It's not a bad sound at all--this is no fart can--just somewhat louder.

On balance, I'm very happy with it, and would buy this again if I had to do it over.