New B here!!!

bobbymac · Mar 3, 2025 at 5:39 PM

SRT-Tom said: ↑

If you want a louder exhaust sound, install single-chamber Flowmaster Super 10 mufflers. Your Challenger will probably be 15% louder than stock, with a vastly improved exhaust tone, a nice grumble at idle and a real deep bark at WOT. Keep the resonators to prevent drone and rattling.
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Little late on this - Thanks SRT Tom, I just might try a [air of flowmasters after this track year... Funny but I have always done good at the traffic light. Back on the drag track, new to the island in decades. Have to work one the light in this 1320 still. Love the track and its a lot safer. Especially not looking for a cop wanting to make a name...
bobbymac

bobbymac · Mar 3, 2025 at 5:48 PM

already did in my quote... bbmac

Moparisto said: ↑

Also, go for some long-tube headers, either Tri-Y or 4-into-1 that are about 1 7/8" in diameter to maximize scavenging in each cylinder and pave the way for more future modifications.

People claim they aren't necessary. Neither are Challengers. Their argument is pointless. They are a fundamental thing to do to improve cylinder-to-cylinder consistency in an engine. It is childish to bray that they "aren't needed because uncle Clem done run a 8 secind quatter mile with stock headers and 25,000 dollars in the motor!!!"

I also suggest high-flow catalytic converters. They do make a difference.

Of course, you will need a PCM change and a proper tune to add to it. Many, such as Curt Dusterhoff offer pre-configured tunes for various combinations of long-tube headers, etc., Better fuel mileage and greater power await, as well as great sounds.

PS I strongly advise wrapping your stainless headers back to the catalysts in heat-retaining insulating wrap. "Why to the catalysts?" you say? Keeps that exhaust nice and hot when first warming up the car so that cold and rich warmup exhaust doesn't "tar" the catalysts with cold unburned hydrocarbons, but instead, the catalyst lights off fairly quickly.

Besides, heat wrap keeps your headers from boiling some of the components of your fuel system and fuel on its way to the injectors, which can cause starting issues when heat-soaked.

You will find what little or great things you can do that will take you to your happy place.

If you are determined and have lots of money, you can find as much peak power with a naturally-aspirated motor as with a Hellcat, but it all depends on your level of determination.

RHS CNC-ported heads, titanium retainers, stiffer valve springs good to 8000 RPM, and aftermarket cam that emphasizes upper RPM more, a great tuner, etc., it just depends on what you want and how you are willing to get it.

But, you will want bona fide forged rods and aftermarket pistons for no surprises.

There are so many things you can do. Also, do you like it idling like an angry race car?

Heck, even just retarding the cam a bit can yield a shift in hp up the RPM scale...
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baccaruda · Mar 3, 2025 at 6:21 PM

bobbymac said: ↑

already did in my quote... bbmac
Click to expand...

Super 10™ Series 409S stainless steel, single chamber mufflers. Intended for customers who desire the loudest and most aggressive sound they can find. Because these mufflers are so aggressive, they are recommended only for off highway use and not for street driven vehicles. These mufflers utilize the same patented Delta Flow® technology that is found in Flowmaster's other Super series mufflers to deliver maximum performance. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability. keep in mind....
Features:

Race-Proven Delta Flow Technology

409S Stainless Steel Construction

Super 10 Aggressive Sound Level

Compact Size For Easy Fitment

toxicfire · May 26, 2025 at 12:42 PM

SRT-Tom said: ↑

If you want a louder exhaust sound, install single-chamber Flowmaster Super 10 mufflers. Your Challenger will probably be 15% louder than stock, with a vastly improved exhaust tone, a nice grumble at idle and a real deep bark at WOT. Keep the resonators to prevent drone and rattling.
Click to expand...

Ive seen a few videos with these and the cars sound amazing!

Moparisto · May 27, 2025 at 2:15 AM

Gee.Whiz.com.

Anyone hear anything from the OP?

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