1. 8 inch body
2. Overall length: 12 inch
3. Inlet: 2.5 inch
4. Outlet size: 2.5 inch
5. Body diameter: 3.5 inch

Editorial Review :

The original high performance glasspack muffler since 1968. Features the legendary deep and mellow Cherry Bomb sound. Straight-thru design reduces back pressure and maximizes horsepower. It has universal fit and header styles.

Customer Review :

Good little muffler for fine-tuning.

Purchased this muffler for my '05 Scion tC with straight pipes to try to kill the rasp a bit. It did about as much good as could be expected out of a tiny muffler. It deepened the tone a little bit and cut out some rasp in lower and higher revs, but don't expect it to make your car sound mean alone.

I've stacked up two of these and a hushpower 18" muffler, and together it sounds great--these little cherry bombs put a nice color to the sound of an already decently-tuned exhaust.

These are nice because you can fit them onto small stretches of straight pipe--my exhaust had lots of 12-14" stretches connected by bends. These glasspacks let me put those small stretches to good use, saving the main stretch of midpipe for a larger muffler.

Protip: it really doesn't matter which direction you install these things; the orientation of the louvers doesn't noticeably affect the performance. The dampening effect of these mufflers occurs because the louvers 'grate' the sound waves that bounce around in the muffler, and they bounce around in all directions... so don't stress it.

Rating :

1. Durable fully welded 16 gauge alumInized steel
2. Aggressive and powerful exterior exhaust tone
3. Notable Interior resonance
4. Excellent street, strip and off road application
5. No Internal packIng to blowOut

Editorial Review :

The OrigInal 40 Series muffler delivers an aggressive exterior and Interior tone. If you're lookIng for that origInal, Flowmaster sound this is the muffler for you. Constructed of 16 gauge alumInized steel and fully MIG welded for maximum durability.

Customer Review :

Flowmaster Monsters

I order 2 form my truck. The sound is awsome!!! I was really impress with the shipping. Came in 2 days

Rating :

great product

I got this for my husband and he says its phenomenal. The shipping was quick which was probably my husband favorite feature! Though he does start his durango for everyone now!!

Rating :

1. Deep aggressive to moderate exhaust note
2. Moderate interior resonance
3. Excellent performance on high horsepower vehicles
4. Race proven patented delta flow technology
5. No internal packing to blow-out

Editorial Review :

The Super 40 features Flowmaster's Delta Flow technology. It's larger case profile provides the best of both worlds of performance and sound. The Super 40 has the deep powerful sound of the original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability.

Customer Review :

No review yet

1. Quaility-built and competitively-priced, the Thrush line-up of unique mufflers and accessories are available to provide your car, light truck or sports utility vehicle with an aftermarket exhaust system that delivers,mile after mile
2. Heavy guage shell provides maximum durability
3. Expandable bushings for custom applications
4. Smooth-flowing perforated center tube minimizes turbulance
5. Continuous Roving Fiberglass for powerful tone; Straight-through design for maximum flow and power

Editorial Review :

Thrush Glasspack Muffler - Overall Length 31" - 2.25" Inlet/Outlet - Single Outlet

Customer Review :

Great resonator

This glasspack not only quieted my custom exhaust down but provided a fine tune and increased power.

Rating :

Glasspack review

the product was delivered fast!! Great item!! and made my 1994 integra sound super DEEEEP. Great product!!!

Rating :

1. Deep aggressive exhaust note
2. Noticeable interior resonance
3. Recent two chamber improvement
4. Race proven patented delta flow technology
5. No internal packing to blow-out

Editorial Review :

Flowmaster’s Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four - inch case street muffler we’ve ever built. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability.

Customer Review :

No review yet