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post #1 of 15 (permalink) Old 03-12-2014, 08:16 AM Thread Starter
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Exhaust Question

I would like to get some power gains by installing aftermarket exhaust but also do it in an inexpensive manner. For example, I have a $50 K&N filter in my stock housing which is going to be less restrictive than other filters but I didn't go all out and run a cold air because I don't have a lot of money to dump into my car a the moment. If I just wanted to get a small HP gain and better sound out of my 2.2L, what advice do you have without me spending an arm and a leg?

Also note: I probably will never turbo the car or do any advanced engine modifications.
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post #2 of 15 (permalink) Old 03-12-2014, 08:21 AM
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You wont really get any hp gains out of a cheap exhaust. If all you want is the sound just replace the muffler to change the note.


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post #3 of 15 (permalink) Old 03-12-2014, 08:31 AM Thread Starter
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I don't want just sound, I want more air flow through my motor but like I said, I don't want to spend a lot to get it done. Couple hundred maybe.
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post #4 of 15 (permalink) Old 03-12-2014, 08:43 AM
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You can look into eBay catbacks. They work just as well as any of the big name systems for less $. The drawback is that they might sound a bit raspy.

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post #5 of 15 (permalink) Old 03-12-2014, 09:11 AM
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Plus your pinch point is going to be at the down pipe. A bigger cat back wont do much if you run stock manifold and down pipe.


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post #6 of 15 (permalink) Old 03-12-2014, 11:12 AM
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after catback and downpipe you want to upgrade the header/exhaust mani, you want something primaries that match the size of the exhaust ports on the engine, and with equal length tubes running to the collector.

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post #7 of 15 (permalink) Old 03-12-2014, 12:59 PM Thread Starter
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The down pipe being what runs down from the header? Not sure of the technical terms for all of this... also, what would be a good diameter to go with? I was thinking 2 inch pipe. I'm thinking a local muffler shop could get me some mandrel bent tubing for cheap and I could just have him weld it all up after I got a muffler and header off eBay? But idk.
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post #8 of 15 (permalink) Old 03-12-2014, 02:06 PM
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The downpipe (or DP) is the pipe that leads from your header to your catback. It holds your cat and downstream O2 sensor.

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post #9 of 15 (permalink) Old 03-12-2014, 03:07 PM
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Pretty much you gotta upgrade everything if you want some power gains. What diameter is good? 2.25 or 2.5 guys?
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post #10 of 15 (permalink) Old 03-12-2014, 03:35 PM
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Either's fine unless you plan on pushing past 300 WHP.

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