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Old 07-08-2014, 06:43 PM   #1

FlowmasterMufflers's Avatar
Drives: 2016 Camaro SS
Join Date: Jul 2010
Location: Santa Rosa, CA
Posts: 618
Systems 101: Designing a Custom Exhaust System for Your Camaro

Header Collector Ball Flange Kits:

The Flowmaster Ball Flange Kit takes the place of messy three bolt flange type connections and allows for a leak free and gasket free ball flange type connection. All kits are 16ga aluminized tubing and are sold in pairs.

Pipe Size:

The size of tubing used in an exhaust system is as important as selecting the right muffler. Your tubing diameter choice will affect the sound level and performance characteristics of the muffler, but keep in mind that bigger is not always better. Using tubing that is too large can actually hinder exhaust scavenging by slowing the velocity of exhaust pulses in the tubing. As a rule, most stock street applications running dual exhaust use 2.00” through 2.25” tubing, and modified street applications (dual exhaust) will generally use 2.25” or 2.50” tubing. Very rarely will 3.00” tubing be used in dual exhaust street applications.

In general, the following guidelines should be applied for street applications:

Single Pipe Diameter / Horsepower

2.50" / 150-200
3.00" / 200-250
3.50" / 250-350
4.00" / 350-425
4.50" / 425-500
5.00" / 500 and up

Dual Pipe Diameter / Horsepower

2.50" / up to 400
3.00" / up to 500
3.50" / up to 700
4.00" / up to 850
4.50" / up to 1,000

Balance Pipe(H-pipes and X-pipes):

Flowmaster strongly recommends using a crossover tube, otherwise known as an “H” pipe or balance pipe on all true dual exhaust systems. The crossover pipe equalizes the exhaust pulses and allows the sounds waves to communicate between both banks of the engine. Not only does this usually improve torque in the low to mid rpm range, it also creates a deeper mellower tone both inside and outside of the vehicle and helps eliminate “back-rap” on deceleration.

Flowmaster has performed extensive testing and determined that the “H” and “X” pipes deliver no significant difference in performance, but do affect tone, the “X” pipe giving off a higher pitched tone. Flowmaster Scavenger “X” pipes however, do increase torque through use of their patented D-Port technology and retain the deep Flowmaster muffler tone desired by most performance enthusiasts.

Muffler Selection:

The sound of your exhaust is much like music; we all have different preferences so it’s important that the system be “tuned” to what you like. With the Flowmaster family of products we can help accomplish this by answering the questions below. This approach will allow you to choose the best product to suit your needs and expectations.

1. What is the vehicle year, make, and model?
2. Which engine do you have or how much horsepower does it produce?
3. What is the vehicle used for? (i.e.: daily driver, race, towing etc.)
4. Preferred sound levels (interior and exterior?)
5. How are the space requirements?
6. Would you like a complete exhaust system or universal pipe kit if available? Single or dual outlet?

System Hangers:

Adequate hangers should be used to properly support the system. Flowmaster uses OE style hangers in all systems.


Resonators are designed to be used in conjunction with your mufflers for improved sound reduction. Resonators will help to eliminate interior resonance.

Stainless Tips/ Exit Location:

Flowmaster highly recommends running a minimum of 12” tailpipe after the muffler. This will not only greatly help in sound control, it will also provide an increase in exhaust efficiency (more power). Running tailpipes out from under the car in street applications will also direct the potentially harmful exhaust fumes away from the vehicle, as well as minimize the sound transmitted into the cab area of the vehicle.
Flowmaster's line of Stainless Steel Exhaust Tips are a great way to let people know that you have Flowmasters under your ride! They come in a variety of styles from brushed to polished and will greatly enhance the look of your vehicle!

If you have further questions regarding any of our products, please call (707) 544-4761 or visit our website.

Phone: (707)544-4761 M-F 6AM–5PM PST, Sat 7:30AM–5PM PST
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Old 07-08-2014, 07:18 PM   #2

rebelyell22's Avatar
Drives: 2011 SIM 2SS/RS LS3
Join Date: Sep 2013
Location: Tupelo, MS
Posts: 5,657
Cool post, but you posted in the wrong section Now how do I make my Camaro sound like a Mustang?
2011 2SS/RS built 8/24/10
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Old 07-08-2014, 09:36 PM   #3
KaBoom1701's Avatar
Drives: 13' ZL1 Red M6
Join Date: Dec 2012
Location: I.E. SoCal (Yucaipa)
Posts: 8,456
I wonder if one of these custom exhaust set ups for make the V6 LFX sound better?
Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats.
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Old 07-08-2014, 09:59 PM   #4
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Drives: 2012 1LS V6 LFX
Join Date: Jun 2014
Location: Atlanta GA
Posts: 134
Originally Posted by rebelyell22 View Post
Cool post, but you posted in the wrong section Now how do I make my Camaro sound like a Mustang?

Buy a mustang.... I kid I kid
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