Flowmaster 817837 2.5" American Thunder Axel Back System for 18-25 Jeep Wrangler JL with 3.6L
T-409 Stainless Steel: Built to resist high temperature corrosion this exhaust will withstand everything from rust to grim ensuring your exhaust will hold up keeping your Jeep sounding great and looking good for years to come.
Full Mandrel Bent Pipe: Is a process that allows the pipe to bend without creases or folds while preventing your exhaust tube flattening allowing for more of a free flowing exhaust.
Performance & Sound: Enjoy a boost in horsepower as a result from the better exhaust flow plus a head turning moderate to aggressive sound that comes out of the 3" polished stainless steel tip.
Installation: This kit comes with everything you need for installation while using some of the factory hardware also.
- Features: Aggressive Sound
- Color: Silver
- Material: T-409 Stainless Steel
- Type: Muffler Delete
- Shipping Weight: 5lb
- Shipping Dimensions: 29in x 10in x 6in (L x W x H)
Jeep Wrangler 2-Door (JL)
- 2025 Jeep Wrangler 2-Door (JL)
- 2024 Jeep Wrangler 2-Door (JL)
- 2023 Jeep Wrangler 2-Door (JL)
- 2022 Jeep Wrangler 2-Door (JL)
- 2021 Jeep Wrangler 2-Door (JL)
- 2020 Jeep Wrangler 2-Door (JL)
- 2019 Jeep Wrangler 2-Door (JL)
- 2018 Jeep Wrangler 2-Door (JL)
Jeep Wrangler Unlimited 4-Door (JL)
- 2025 Jeep Wrangler Unlimited 4-Door (JL)
- 2024 Jeep Wrangler Unlimited 4-Door (JL)
- 2023 Jeep Wrangler Unlimited 4-Door (JL)
- 2022 Jeep Wrangler Unlimited 4-Door (JL)
- 2021 Jeep Wrangler Unlimited 4-Door (JL)
- 2020 Jeep Wrangler Unlimited 4-Door (JL)
- 2019 Jeep Wrangler Unlimited 4-Door (JL)
- 2018 Jeep Wrangler Unlimited 4-Door (JL)
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Flowmaster 2.5" American Thunder Axel Back System Reviews
My manual tranny jeep was too quiet. I mainly shift by sound and feel. So I was stalling occasionally, not often, at traffic lights and stops. Couldn't hear where my RPMs were unless I over revved. This very simple, inexpensive upgrade solved that problem. And as a bonus, it sounds amazing with the top off. One of the best and easiest upgrades I've done.
Sounds great, cheap price.
Technically not street legal anymore, however.
Tried to put it on myself but the OEM muffler was a huge pain in the rear, took it to a shop and we got it swapped in 1 hour. Mostly because the OEM muffler had a stuck bolt, and the pipe was slightly mismatched in diamater, so it took a little hammer and saw massaging to get them to accept each other.
None of this was the fault of this product, probably just heat-stretched exhaust that made it take twice as long as it should have.
EASY INSTALL AT ANY SHOP...SOUNDS SO MUCH BETTER! EASY INEXPENSIVE SOLUTION! WEEKEND DRIVER'S PERFECT SOLUTION!
