Exaust chenge.
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Exaust chenge. - 2/9/2008 5:48:30 AM
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An89Chevy
Posts: 72
Joined: 5/11/2007
Status: offline
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Is it a bad idea to Replace the stock muffler on a 2003 silverado, i want to replace it with a Magnaflow, by doing this is there going to be power loss, computer or emmissions problems.
I was originaly goin to put a flowmaster on it, but their to loud for a every day truck.
any opinion with which magnaflow to use, i just want single in/out.
Thanks
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2003 silverado ext Z71 W/ 5.3 ltr
1989 C1500 shortbed W/ 5.7 ltr
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RE: Exaust chenge. - 2/9/2008 7:17:51 AM
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fireman526
Posts: 450
Joined: 2/3/2008
From: Houston, Texas
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Their wouldnt be any power loss. You would get reduced back pressure and if anything see power gains. No computer problems, theres nothing electronic near the muffler. The only problem you would have is if you put headers on it without the proper 02 sensor holes and left them off, then i could see computer problems or emission troubles. Also, if you remove your catalytic converters you will not pass emissions. But if your just doing a cat back, or a muffler swap out, your not going to have any problems at all, ive dont it to all my vehicles. As far as loudness, Magnaflow makes mufflers just as loud as flowmasters. It depends which one you get. Youve got to compare apples to apples. Single chamber flowmaster to a 12" long straight through magnaflow race series is going to be loud! If you want quite performance, go with a 50 series flowmaster or a magnaflow xl performance. A catback magnaflow will cost you around $700. Catbacks are always better though because most are stainless and will last forever, and they use mandrel bends, and they offer smoother surfaces on the inside for less restrictions. Worth it in my opinion, if you plan on keeping your truck for several years.
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RE: Exaust chenge. - 2/9/2008 10:09:42 AM
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An89Chevy
Posts: 72
Joined: 5/11/2007
Status: offline
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with a 50 series flowmaster or a magnaflow xl performance. is there still a noticable change in the tone?, i just dont want something as loud as a super 40, something a little milder with still that aggressive tone and wont drive a child crazy in the back seat.
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2003 silverado ext Z71 W/ 5.3 ltr
1989 C1500 shortbed W/ 5.7 ltr
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