Stock exhaust cats

Islindur

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Had:Yellow 2l Have: Red 3l
Any1 can tell me how many and where are located the cats in stock exhaust?
I know there is one in downpipe, but where are the rest? Which one is the biggest/most restricitve?
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a90moe

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Any1 can tell me how many and where are located the cats in stock exhaust?
I know there is one in downpipe, but where are the rest? Which one is the biggest/most restricitve?
DP has two cats ;) Biggest restriction is from there
 
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Islindur

Islindur

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Oh :eek:
Any others or just those 2?
 
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Islindur

Islindur

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Those two only..

Other exhaust system parts are a resonator and a muffler
Ok so uncatted downpipe could cause problems on smog test probably... but also should make turbo spool faster.
On the other hand muffler delete just for louder sound shouldnt affect emission tests, I guess..
 

Dannyvandelft

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Ok so uncatted downpipe could cause problems on smog test probably... but also should make turbo spool faster.
On the other hand muffler delete just for louder sound shouldnt affect emission tests, I guess..
Correct
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