Pay in installments of $24.99 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Muffler Flow FX 2.25" Offset In/2.25" Offset Out SS ModerateOverview: Flowmaster's Flow FX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the "chambered" muffler sound. The interior features a large 3. 00 inch "straight through" stainless steel perforated core, surrounded with high temperature sound absorption materials delivering a deep traditional mellow tone. The internal flow design is reversible, so the muffler can be installed in
Overview:
Flowmaster's Flow FX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the "chambered" muffler sound. The interior features a large 3.00-inch "straight-through" stainless steel perforated core, surrounded with high-temperature sound absorption materials delivering a deep traditional mellow tone. The internal flow design is reversible, so the muffler can be installed in either direction to best suit the vehicle application and offsets needed. Features include fully MIG-welded "bright" 409 stainless steel construction with the Flow FX logo embossed on both sides of the case. The Flow FX line of mufflers is perfect for the person looking for a show quality performance muffler at an economical price point and in a compact sized case.
Features:
Specs:
Applications:
- 2005-2012 Chrysler 300 345 CID
- 2005-2010 Chrysler 300 215 CID
- 2005-2010 Chrysler 300 167 CID
- 2011-2013 Chrysler 300 220 CID
- 2009-2013 Dodge Challenger 345 CID
- 2009-2010 Dodge Challenger 215 CID
- 2011-2013 Dodge Challenger 220 CID
- 2006-2010 Dodge Charger 215 CID
- 2006-2010 Dodge Charger 345 CID
- 2006-2010 Dodge Charger 167 CID
- 2005-2008 Dodge Magnum 345 CID
- 2005-2008 Dodge Magnum 215 CID
- 2005-2008 Dodge Magnum 167 CID
- 1975-1976 Buick Skylark 260 CID
- 1977-1977 Buick Skylark 301 CID
- 1977-1977 Buick Skylark 305 CID
- 1977-1977 Buick Skylark 350 CID
- 1976-1978 Chevrolet K5 Blazer 400 CID
- 1976-1978 Chevrolet K5 Blazer 350 CID
- 2010-2013 Chevrolet Camaro 217 CID
- 1966-1966 Chevrolet Caprice 283 CID
- 1967-1967 Chevrolet Caprice 327 CID
- 1968-1968 Chevrolet Caprice 427 CID
- 1969-1996 Chevrolet Caprice 350 CID
- 1994-1996 Chevrolet Impala 350 CID
- 1976-1978 GMC Jimmy 400 CID
- 1976-1978 GMC Jimmy 350 CID
- 1986-1995 Ford Mustang 302 CID
- 1986-1986 Ford Mustang 140 CID
- 1996-2004 Ford Mustang 281 CID
- 2005-2010 Ford Mustang 245 CID
- 2011-2013 Ford Mustang 227 CID
Emissions:
- This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 5 reviews
Sort
Product Reviews
★★★★★ 5
Poli Glow used on bottom portion of the picture
Just put it on 21 foot RV, was impressed with the shine. Key is to make sure the applicator is moist. I periodically dampen with water. Realizing it wasn't going to revive the stickers. Question is
How long it will last?
What will it look like after it rains?
Pictures attached, bottom portion was done with poli glow on June 7,2026 and I have just under a half of bottle left. Maybe I will update once it rains or how long the shine last.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
★★★★★ 5
It works miracles
I was amazed by the incredible difference it made on my RV. Check the pictures. The difference is of such a magnitude that we were amazed by the final results. Brought my rig back to life
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
★★★★★ 5
Bringing a 1976 MG Midget to the modern world!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid.
This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush.
Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it.
If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2025
★★★★★ 5
Excellent Car Sound Deadening and Heat Insulation Solution
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable.
The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather.
One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with.
Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2023
★★★★★ 4
Heavy-Duty That Works!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
This extreme sound deadening mat performs well for reducing road noise and vibration. It feels dense and adheres securely when properly applied. Once installed, it noticeably improves interior quietness.
Overall, it’s a strong choice for more serious sound insulation projects.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026