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05-12-2012, 06:38 AM #11
Overkill.... but really cool.
05-13-2012, 11:55 PM #12
I've had the magnaflow and yeah it had a bad drone but sounded great otherwise. I like Borla or Corsa but if you budget sometimes you have to compromise or just save up the cash. Less restriction on the exhaust will help with mpgs for sure. Like the others said combine that with a CAI, headers, or a tune and you maximize performance and mpgs.2012 Silver Chevy Silverado 1500 Z71 Crew Cab LT 6.2L 400+hp, Hypertech, K&N CAI, tent, AVS
2012 Black Harley Davidson Fat Bob 103 engine, Willie G
2011 Silver Infiniti QX56, 400+hp
2009 Lime Green Kawasaki KFX 450, Moose armor, GNCC
2007 Red Polaris 500 X2
2009 Lime Green Kawasaki Ninja 250
2009 Infiniti G37X, Stillen CAI, Magnaflow, 2007 Infiniti 370GT, 2007 Chevy Silverado 1500 Z82 Crew Cab LTZ AMerican Luxury Coach conversion, Fabtech lift, 2007 Chevy Silverado 1500 Z71 LTZ old body style, 2008 Nissan Armada, 2003 Yamaha YZFR1, 2007 Honda VTX 1800, 1993 Chevy S-10 over 350,000 miles on orig motor and trans
05-14-2012, 12:33 AM #13
Your best bet is a custom exhaust shop. If you don't like the sound, they can replace the muffler with something else. No issues. What more could you want? They can design exactly what you want. Tell them your concerns about sound levels at highway speeds, etc. or if you want a certain sound. It all can be done by a reputable and competent custom exhaust shop. I stress the words "competent" and "reputable".
It is delusional to think changing the exhaust helps gas mileage very much. No, it does not help it much. If you have a diesel, it might if you reprogram the engine ecu. The difference is not going to be much on a gas engine, if at all. The difference is mainly psychological. Same folks think it increases horsepower or torque when in fact it has little or no effect whatsoever. If you doubt this, have your vehicle tested on a dynomometer before and after the exhaust modification. While you are at it, have them tune the computer for the best fuel-air ratio for your engine.1994 Chevy K2500 Silverado, 454 (modified), original owner.
And other vehicles and toys.
"...If you can meet with triumph and disaster
And treat those two imposters just the same;
...you'll be a Man, my son!" Rudyard Kipling
05-14-2012, 01:06 AM #14
Guess I'm delusional, thanks for the psychological diagnosis. I'd put my vehicle on a dynamometer and see if the Hp is increased. I doubt it's psychological when less restriction on the exhaust equals better performance. Yeah to get better gas mileage you have to learn how to be easy on the pedal and brake, but even that is not psychological. I guess all the aftermarket products and modifications are pointless then? It's all in your head? Ok... I guess those extra mpgs I got after making mods were not really there, it was just all a figment of my imagination. Lol!
05-14-2012, 09:50 AM #15
My tuner and custom tune made large differences in getting me back MPG's lost due to modifications like the lift and tires. The regear I did also helped recover lost MPG's due to rolling on large, heavy tires, as I don't drop out of overdrive on mild inclines, anymore. My CAI and exhaust made zero differnce in my gas mileage.
05-14-2012, 12:29 PM #16
05-14-2012, 12:37 PM #17
I certainly don't think you're delusional... (The Heater's language, here, tends to be strong in tone, but he is well-informed and means well.)
Many mods (intake tubes, CAI's, etc) advertise improvements that are questionable, at best, and very tough to prove under normal driving circumstances. A custom tuner will certainly take your intake and exhaust changes into consideration when tuning, but will you get human-noticeable results out of that ... from those specific modifications? Likely not. I know I didn't.
05-14-2012, 02:43 PM #18
Oh it's okay I was just joking around anyway. It's hard to determine someone's intentions based on things written most of the time. But I understand your comments and do appreciate it. I know I'm a little crazy at times and was just having fun with the term delusional. Man this thread really got off topic lol!!! Anyway I am more informed now, and I'll give you credit for the well written explanation, which is why I'm here. I know a great deal about cars and trucks but I'm here to learn more and build my knowledge base and of course interact with others who love the topic of trucks. Thanks JB.
05-16-2012, 12:34 AM #19
Had magnaflow on my suburban DI/DO and I had HORRIBLE drone, it rotted in less then 3 years and now have a flow pro muffler and its perfect!! My pickup just had a flowmaster super 10 put on and that is awesome. i kept all the factory piping for it. Borla and corsa are very expensive, my dads NNBS 07 vortec max has a borla and i still am on the fence with it, but again its all personal preference as to what kind of sound you like. So best advice, pick within your budget, if you have a shop bend you up an exhaust you are gonna be looking at 400-450, depending on the muffler(s) and tips, they are someotime 50 bucks apiece.99 K1500 Suburban LT "THE BEAST"
Hypertech III, K&N, true dual
05-16-2012, 12:44 AM #20
One of my motorcycles had a new exhaust system once upon a time. Before buying this system from Vance and Hines, a respected name in motorcycle high performance, I talked to a technician at V&H. He said I would have increases in both torque and HP. Well, when I had it installed, I took it to a place that has a dyno, and to my dismay, they called and said they tried every possible modification to the baffle, and in all instances my horsepower and torque actually went DOWN with the V&H pipe. About that time I started to feel pretty stupid. You can imagine what that V&H technician felt like when I called him back to give him the news.
Last edited by The Heater; 05-16-2012 at 12:54 AM.
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