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Old 01-30-2013, 04:15 AM   #1
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Aftermarket exhaust

How will an aftermarket cat back along with axel back exhaust increase hp on my 2012 v6?
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Old 01-30-2013, 05:40 AM   #2
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You'll be lucky to get 5-8 hp if not tuned w/ cai. They are for sound improvement, just
get axle-back by Borla or Mac for a deeper tone.
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Old 01-30-2013, 05:49 AM   #3
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What audioAl said.

Think of your engine as a large air pump. For it to work better (i.e. produce more power), getting the air out easier, the air in easier requires modification in the air intake, air exhaust, and then changing the fuel and spark to take advantage of these improvements. This is where the tuner comes in.

Adding an exhaust system will sound better (if only an axle back system is added); not much help on exhaust flow. However, the stock system flows good, but can be improved upon for ultimate performance.

Adding a cai: this has been talked about here more than anything else. The stock system in our 3.7 V6 engines flow as good as 98% of the CAI's that are sold. If you plan to buy a CAI and a tuner, then buy them as a set. Make sure the CAI you buy is setup for a tuner. If you buy a CAI tha is advertized as "does not require a tuner", then know you are buying it for the sound and dressup characteristics only, as it will flow no better than the stock air box on our 3.7 V6 engines. Other engines do benefit from just a CAI, but not our 3.7 V6. Ford did a decent job on this arrangement for it's stock ECU programming. There are however CAI that work better if mated to a tuner.

Be aware that a tuner will provide your highest chance of voiding an engine warranty. This is why you need to decide what mods you want to do and when to do them to save on the performance investment.
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Old 01-30-2013, 10:50 AM   #4
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Quote:
Originally Posted by bucko View Post
What audioAl said.

Think of your engine as a large air pump. For it to work better (i.e. produce more power), getting the air out easier, the air in easier requires modification in the air intake, air exhaust, and then changing the fuel and spark to take advantage of these improvements. This is where the tuner comes in.

Adding an exhaust system will sound better (if only an axle back system is added); not much help on exhaust flow. However, the stock system flows good, but can be improved upon for ultimate performance.

Adding a cai: this has been talked about here more than anything else. The stock system in our 3.7 V6 engines flow as good as 98% of the CAI's that are sold. If you plan to buy a CAI and a tuner, then buy them as a set. Make sure the CAI you buy is setup for a tuner. If you buy a CAI tha is advertized as "does not require a tuner", then know you are buying it for the sound and dressup characteristics only, as it will flow no better than the stock air box on our 3.7 V6 engines. Other engines do benefit from just a CAI, but not our 3.7 V6. Ford did a decent job on this arrangement for it's stock ECU programming. There are however CAI that work better if mated to a tuner.

Be aware that a tuner will provide your highest chance of voiding an engine warranty. This is why you need to decide what mods you want to do and when to do them to save on the performance investment.
I have a 2010 black v6 mustang with single stock exhaust, should I go with the borla you mentioned or magna flow or flow master?
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Old 01-30-2013, 06:50 PM   #5
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Quote:
Originally Posted by bucko View Post
What audioAl said.

Think of your engine as a large air pump. For it to work better (i.e. produce more power), getting the air out easier, the air in easier requires modification in the air intake, air exhaust, and then changing the fuel and spark to take advantage of these improvements. This is where the tuner comes in.

Adding an exhaust system will sound better (if only an axle back system is added); not much help on exhaust flow. However, the stock system flows good, but can be improved upon for ultimate performance.

Adding a cai: this has been talked about here more than anything else. The stock system in our 3.7 V6 engines flow as good as 98% of the CAI's that are sold. If you plan to buy a CAI and a tuner, then buy them as a set. Make sure the CAI you buy is setup for a tuner. If you buy a CAI tha is advertized as "does not require a tuner", then know you are buying it for the sound and dressup characteristics only, as it will flow no better than the stock air box on our 3.7 V6 engines. Other engines do benefit from just a CAI, but not our 3.7 V6. Ford did a decent job on this arrangement for it's stock ECU programming. There are however CAI that work better if mated to a tuner.

Be aware that a tuner will provide your highest chance of voiding an engine warranty. This is why you need to decide what mods you want to do and when to do them to save on the performance investment.
Great answer, thanks man I have the sct tune, ordered the bbk throttle body and steeda intake about a week ago but have to wait a few more weeks cause there not in stock at AM :/ Now cat & axel back exhaust will be the last things I purchase from my mod list.
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