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Author Topic: Cat back exhaust question  (Read 2202 times)

Offline Coe

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Cat back exhaust question
« on: March 28, 2011, 12:14:52 am »
Hi guys,

I'm considering getting a (resonated) cat back exhaust system for my mk5 GTI.

The question is, my car is completely standard will it run ok doing this change alone or will it cause any issues with fueling etc?

Cheers :smiley:
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Offline Janner_Sy

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Re: Cat back exhaust question
« Reply #1 on: March 28, 2011, 12:25:44 am »
100% fine.  The cat back wont increase performance or change fueling etc.  Its only a noise increase you will get. 
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Offline Gene Hunt

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Re: Cat back exhaust question
« Reply #2 on: March 28, 2011, 01:57:14 am »
Quote from: Janner_Sy on March 28, 2011, 12:25:44 am
100% fine.  The cat back wont increase performance or change fueling etc.  Its only a noise increase you will get. 
.......& if it's noise you want then non res is the way to go.Resonated is not as loud as the factory system.
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ED35. Standard factory condition.

Offline Coe

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Re: Cat back exhaust question
« Reply #3 on: March 28, 2011, 08:43:29 pm »
Thanks for the info guys. I am going for the resonated version as I'd like a bit more noise but not LOUD  :happy2:
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Offline Mandy

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Re: Cat back exhaust question
« Reply #4 on: March 28, 2011, 09:22:11 pm »
I've just recently fitted res to mine and I'd say normal driving it is slightly quieter than stock, but when you drive it a bit harder it is louder.
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Offline bodger00

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Re: Cat back exhaust question
« Reply #5 on: March 28, 2011, 09:50:58 pm »
IMO non res is soooo much better and to be honest on day to day driving you would be hard pushed to notice its not stock. However, when you press down on the loud pedal it sounds so much better.
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Offline Gene Hunt

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Re: Cat back exhaust question
« Reply #6 on: March 29, 2011, 01:06:30 pm »
Quote from: bodger00 on March 28, 2011, 09:50:58 pm
IMO non res is soooo much better and to be honest on day to day driving you would be hard pushed to notice its not stock. However, when you press down on the loud pedal it sounds so much better.
...............x2  :happy2:
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Offline Homer

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Re: Cat back exhaust question
« Reply #7 on: March 29, 2011, 09:28:50 pm »
I would think if you are going to spend the money mate you would want one which is louder and not quieter than factory fitted one? Otherwise why not just keep the one you have?
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Offline Coe

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Re: Cat back exhaust question
« Reply #8 on: March 30, 2011, 08:25:34 pm »
Hi folks, wee update. I have now fitted the resonated cat back exhaust on my golf.

You are all right, if the exhaust is louder I cannot tell, it might be a 'wee bit' but its too close to the standard sound. On the plus side its better quality, looks better, is lighter and gives a noticeable difference to the throttle response. I got a very good deal on the exhaust so i'm happy anyway.

Thanks guys :)
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Offline bodger00

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Re: Cat back exhaust question
« Reply #9 on: March 30, 2011, 08:56:47 pm »
Quote from: Coe on March 30, 2011, 08:25:34 pm
gives a noticeable difference to the throttle response.
I thought that it was the placebo effect but I noticed this too :happy2:
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