Flowmaster® - Super HP-2™ Muffler

19 reviews|Item # sp237521
Vehicle Specific
  • Select your vehicle when adding to cart to confirm fitment
Notes:
  • Adapters may be required
  • Installation may involve welding and cutting
Authorized Dealer
$161.45 - $189.95
$169.95 - $199.95Save 5%
Availability Varies - Depends on Product Options
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Features

  • Delivers Terrific 50’s Style Street Rod Tone
  • Laminar Flow Muffler Technology
  • Low Exterior Heat via Cool Shell Technology
  • Can be Polished to Show Shine
  • Small Overall Size for Easy Fitment
  • Limited Lifetime Warranty
  • Flowmaster Special Offers

Product Details

Super HP-2™ Muffler by Flowmaster®. Flowmaster has taken the laminar core of the classic HP-2 muffler and wrapped it in a new compact square case.

Flowmaster - Delta Flow Technology

The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from laminar flow mufflers, now in a new sleek styling. These mufflers are available in either a 409S stainless steel case or a polishable 304S stainless steel case and in sizes ranging from 2.00 in., 2.25 in. and 2.50 in. These mufflers are manufactured in the USA and are covered by Flowmaster's Lifetime Limited Warranty.

Flowmaster mufflers differ in technology and tuning, and thus in tone and character, to give your performance engine a sound to your personal liking.

All Flowmaster mufflers are tuned for maximum performance. All Flowmaster mufflers produce a beautiful deep performance tone. Choosing the right Flowmaster muffler is not a technical decision – it is all up to your personal taste. It’s A Sound Decision®.

Flowmaster mufflers employ two unique technologies developed by the company; the patented Delta Flow and the Laminar Flow. They give different characters of sound and can be tuned to achieve the desired exhaust note. Flowmaster Exhaust System Technology is so versatile, and gives such a high degree of control, that it is used both by racers, who want maximum power, and by the U.S. Air Force in Stealth applications where maximum silence and minimum heat emissions are prime considerations. Be it for a domestic or import truck, SUV, off-road warrior, daily driver, muscle car, euro-spec cruiser or sport compact vehicle Flowmaster always has the right muffler for you.

Reviews

(19)
Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
/5
1-10 of 19 Reviews
5 of 5
Sounds Amazing
This muffler is amazing. Got it after looking at the product description of a "deep, throaty sound" and it's true to it. Sounds great at low and high RPMs and it's not overly loud, but just loud enough.
Flowmaster® - Super HP-2™ Oval Performance Exhaust Muffler
Posted by Douglas (Melville, NY) / April 14, 20212001 Subaru Forester
5 of 5
Flowmaster 12418409 - Super HP-2 409 Stainless Steel Performance Muffler
My only complaint was my tip was sent separate from the exhaust, and the complimentary Flowmaster stickers were damaged. I have and will order again though, as I'm ultimately satisfied with CARiD.
Posted by Nicholas (Clearfield, PA) / April 30, 20162008 Pontiac G6
5 of 5
2019 Ram 1500 5.7 Hemi sounds great
Only took myself and another guy to install and sounds great!
Posted by Mike (Ogallala, NE) / April 11, 20252019 Ram 1500
3 of 5
Superior Sound
Just put this muffler on my truck with all new aluminized pipe from Cats. to bumper. When peeling off the rotted exhaust from my 2008 F150, I seen it was Flowmaster also..... The entire back of the muffler rotted out letting the right tailpipe drag on the road. Hope this holds up well. Hmmm. Sounds great though. I would have given a higher rating if there had been a Tshirt in the boxes.
Posted by Customer / December 24, 20242008 Ford F-150
4 of 5
Mufflers
I was a little sketched out but cause I never bought anything from this company but, they arrived in about 2 days and the boxes they came in were a bit ripped up and it looked like they been thrown around but the mufflers themselves were in great shape, I’m actually getting them on next week and I can’t be happier. IF your thinking about buying this item or just wanting to buy something off this site 100% do it it’s legit, it might hurt the bank a little but it’s worth it in my books. I definitely will be back buying items from here. DREAM BIULD HERE I COME LOL.
Posted by Dylan (Jonestown, PA) / April 10, 20222011 Ford Fusion
5 of 5
Sounds Great
This exhaust really makes the 351 in my F-250 sound awesome. Nice, throaty, husky sound. Love it.
Posted by David (Cleveland, OK) / March 21, 20221991 Ford F-250
5 of 5
Flowmaster Outlaw
Watched all the videos on the Flowmaster mufflers and went with the Outlaw, works great, thought it would have been a bit louder, love the sound and really has inproved proformence even more than I could have exspeted. Can't be happier. I would have liked it a bit louder, can't beat the profomence you get, hightly recomend the Outlaw!
Posted by NICHOLAS (Waterford Works, NJ) / December 21, 20211998 Dodge Ram
5 of 5
Outlaw
First of all, I love this muffler. The sound is amazing. Install was pretty easy after busting my knuckles getting the stock muffler off. The only thing that I found that I would change is the clamps. The clamps wouldn’t get tight enough to seal the tailpipes and they can still be moved around. Other than that, it’s great.
Posted by Customer / September 30, 20212013 Ram 1500
5 of 5
Outlaw
First of I love the sound of this muffler! Install was a breeze after taking off the stock muffler. The only thing that I found I didn’t like were the clamps. They didn’t get tight enough and could still move the tailpipes around. Other than that it’s perfect!
Posted by Bryce / September 30, 20212013 Ram 1500
4 of 5
Outlaw
I absolutely love the sound of it! Install was pretty quick. The only thing I don’t like is the clamps. The clamps didn’t fit right and didn’t clamp tight enough. Other than that, it’s amazing!
Posted by Derrick / September 30, 20212013 Ram 1500