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Old 10-07-2015, 02:17 PM   #1
Skillcrusher
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Default Anyone tried or heard this combo?

Thinking of running a cat delete pipe and dual thrush welded mufflers on my 09 na 2.5 impreza. Anyone familiar with the setup? Will the cat delete have an undesirable effect on performance?
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Old 10-07-2015, 03:02 PM   #2
rtv900
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as long as the cat isn't just 'gutted' as some people say, it won't adversely affect power, just the environment.
since you said cat delete pipe I'm assuming it is a real tube, consistent in diameter with the rest of the exhaust which is what matters. Guys who just hollow them out and think they are helping themselves are nuts.
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Old 10-07-2015, 06:04 PM   #3
Skillcrusher
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Yeah I was just gonna weld or clamp a tube in place of the cat and run 2.5" back to a y and the 2 thrush mufflers.
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Old 10-12-2015, 11:52 PM   #4
klaus_b2
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just be ready for a cel
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Old 10-13-2015, 04:50 PM   #5
LaurenceDVS35
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as long as your talking about deleting just the second cat you should be fine delete that first one on the headers tho youll have CEL issues
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