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Engine & DrivetrainDiscussions about the engine and drivetrain of your vehicle.
This is a discussion thread titled "Muffler sizes?", within the Engine & Drivetrain forum, part of the Technical & Vehicle Assistance Forums category.
I am going to buy a stainless steal magnaflow muffler only, offset/center, with 2.5" inlet/outlet and keep the stock 2 3/8 piping like everyone recommends. My question is what size muffler do I buy. On the Magnaflow size, it has 4x9, 5x8, and 5x11 mufflers. What do these sizes mean besides how big they are and price (loudness, performance, etc) and do I have to buy a muffler that is the same size as the stock muffler?
I am going to buy a stainless steal magnaflow muffler only, offset/center, with 2.5" inlet/outlet and keep the stock 2 3/8 piping like everyone recommends. My question is what size muffler do I buy. On the Magnaflow size, it has 4x9, 5x8, and 5x11 mufflers. What do these sizes mean besides how big they are and price (loudness, performance, etc) and do I have to buy a muffler that is the same size as the stock muffler?
The bigger the muff, the quieter it is. A Magnaflow is straight through. Theres no power difference in the sizes.
You can buy as large a muff that will fit, or a smaller one and make up the difference in size with tubing.
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Mods: Donahoe TCF coilovers, TC upper arms, rear Bilstein 5100s, Downey headers, 3" exhaust with Spintech Prostreet, BFG MT 285-70-17s on Helo Maxx 6 Chrome, Electric Brake controller. Tsunami RCA converter, PIE AUX adapter, LA Sound amp, MTX 10" band pass sub.
Thank you! Does anyone know if the 4x9's are too loud (flowmaster loud)? I want something that is quiet at idle so when I warm up the truck in the morning I don't disturb the neighbors, but loud when I mash the peddle. If it's too loud then would the 5x8's be a better option? (Or 5x11?)
i have the 4" X 9" oval that is 14" long. it was not as loud as i expected at all. it is defenitely not even as close to as loud as a flowmaster at all. it has a nice mellow burble at idle and IMO perfectly loud as u get on it (2000 - 3500 RPM )and it even quiets down as the RPMs get higher then that and no drone at all. people defenitely know i have a V8, but it is not deafening or annoying load whatsoever. if i had to do it over, i would have gotten the same muffler.
__________________ ‘04 Tundra DC SR5 4X4Silver Sky Metallic Factory Options: All-Weather Guard Package, V8 Towing Package, LSD, JBL Audio Upgrade My Mods: Donahoe Coilovers, Total Chaos UCAs, Bilstein 5100s in rear, Total Chaos Diff Drop Spacer, Total Chaos Steering Rack Bushings, Robby Gordon 17x8 Wheels, BFG 285/70/17s, JBA Headers (Ti coated), JBA Y-Pipe (ceramic coated), Magnaflow Muffler w/ 3.5” Tip, Volant Cold Air Intake, AudioVOX Alarm, Line-X, OBX Sport Pedals, Billet Antenna, White Guages, VSE Subwoofer, Clear Corners Future Mods: Tinted Windows, Billet Grille, UniChip, Glassworks Supercharger Hood, Sun Roof
I am going to buy a stainless steal magnaflow muffler only, offset/center, with 2.5" inlet/outlet and keep the stock 2 3/8 piping like everyone recommends. My question is what size muffler do I buy. On the Magnaflow size, it has 4x9, 5x8, and 5x11 mufflers. What do these sizes mean besides how big they are and price (loudness, performance, etc) and do I have to buy a muffler that is the same size as the stock muffler?
My Magnaflow SS cat-back on the Sequoia has the 5x11x22 oval and it has nice low rumble with the Magnaflow resonator.
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05 Sequoia 4x4 Ltd. Phantom Grey Pearl, Weld 20" wheels on Toyo tires, MagnaFlow cat-back, Amsoil fluids, custom 15" overhead DVD system, Eclipse NAV system w/camera, Sirius tuner. DLS Nobelium components and coaxials, TRU B-2110 and H-1 amps, 13" eD sub, iPod hookup. SilverStar lamps.
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Muffler sizes?
Does anyone know if the 4x9's are too loud (flowmaster loud)? I want something that is quiet at idle so when I warm up the truck in the morning I don't disturb the neighbors, but loud when I mash the peddle. If it's too loud then would the 5x8's be a better option? (Or 5x11?)
Linear Mode
