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All About Exhaust Systems

90 messages,  Last post on Jun 17, 2009 at 1:11 PM

You are in the Maintenance & Repair Forum. Your Host is mr_shiftright

What is this discussion about? Exhaust, Diesel, Fuel Efficiency (MPG), Car Warranties, Coupe, Convertible, Hatchback, Truck, Sedan, Wagon, SUV, Van

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#71 of 90 QUESTION...... by cr8tvt2 Nov 30, 2007 (11:57 am)
just wondering if anyone can help me!!! I'm searching for a catalytic converter for my truck. Its 2001 full size montero. (y-pipe) Admissions: Federal.
#72 of 90 Exhaust improvement by spiker50 Jan 02, 2008 (4:34 pm)
I would like to know what would be the best aftermarket system to use for performance and gas mileage improvement for my 2005 4.0 V6 Ranger 4X4.
#73 of 90 Re: Anmy downside to Magnaflow exhausts? [okko1] by uwishucould Feb 06, 2008 (5:54 pm)
Replying to: okko1 (Jun 07, 2007 3:40 pm) Does anyone know what to disconnect to run straight headers on an 07 mustang v6? Replies to this message: 0patience (Feb 07, 2008 8:27 pm) Mr_Shiftright (Feb 08, 2008 9:03 am) obyone (Mar 17, 2008 10:27 am) paisan (Mar 17, 2008 2:42 pm) and 1 more... burdawg (Feb 08, 2008 11:46 am)
#74 of 90 Re: Anmy downside to Magnaflow exhausts? [uwishucould] by 0patience Feb 07, 2008 (8:27 pm)
Replying to: uwishucould (Feb 06, 2008 5:54 pm) Unless you have it professionally done, you are looking at major headaches. A lot of sensors have fits when you change the exhaust system without changing the programming. If it were me, I'd leave it alone. Nothing good can come of it.
#75 of 90 Re: Anmy downside to Magnaflow exhausts? [uwishucould] by Mr_Shiftright HOST Feb 08, 2008 (9:03 am)
Replying to: uwishucould (Feb 06, 2008 5:54 pm) Not a great idea. You need the 02 sensors to talk to the computer. Replies to this message: obyone (Mar 17, 2008 10:27 am) paisan (Mar 17, 2008 2:42 pm) obyone (Mar 17, 2008 6:45 pm)
#76 of 90 Re: Anmy downside to Magnaflow exhausts? [uwishucould] by burdawg Feb 08, 2008 (11:46 am)
Replying to: uwishucould (Feb 06, 2008 5:54 pm) At the most you should only put a cat-back system on it. In my own opinion though it's a waste of money, especially on the V6.
#77 of 90 Re: Anmy downside to Magnaflow exhausts? [Mr_Shiftright] by obyone Mar 17, 2008 (10:27 am)
Replying to: Mr_Shiftright (Feb 08, 2008 9:03 am) Aftermarket companies knowing of the problems when removing O2 sensors have manufactured "dummy" sensors which replicate a cars performance under ideal situations which tricks the computer to believing that everything is working fine. Course if you have an emissions problem you would never know as the O2 sensors would report that everything is as it should be.   I live in a non-emission testing state which would make it more reasonable to use the dummy O2 sensors and remove the cats completely which makes for better exhaust then adding a catback as we know that the cats are way more restrictive than any muffler. Replies to this message: paisan (Mar 17, 2008 2:42 pm) obyone (Mar 17, 2008 6:45 pm)
#78 of 90 Re: Anmy downside to Magnaflow exhausts? [obyone] by paisan Mar 17, 2008 (2:42 pm)
Replying to: obyone (Mar 17, 2008 10:27 am) I live in a non-emission testing state which would make it more reasonable to use the dummy O2 sensors and remove the cats completely which makes for better exhaust then adding a catback as we know that the cats are way more restrictive than any muffler.   Despite the fact that they don't test, you are still federally mandated IIRC to have a cat on your car. A High-Flow cat would accomplish both sides of the coin while not giving the all-out best performance it would significantly increase it while keeping you compliant.   -mike Motorsports and Modifications Host Replies to this message: obyone (Mar 17, 2008 6:45 pm)
#79 of 90 Re: Anmy downside to Magnaflow exhausts? [paisan] by obyone Mar 17, 2008 (6:45 pm)
Replying to: paisan (Mar 17, 2008 2:42 pm) LOL!! I guess that's why they stopped selling those straight pipes on ebay.
#80 of 90 Press Request by KarenS HOST May 28, 2008 (5:20 pm)
A reporter would like to talk with anyone who recently have used aftermarket products that provide better fuel economy, such as the Tornado Fuel Saver and fuel-line modifications like air bleeders and magnets. The reporter would also like to hear from people who have tried oil and fuel additives or exhaust-system modifications as well. Please respond to ctalatiedmunds.com with your daytime contact information and what you used no later than Tuesday, June 3rd.

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