Sam1968 Posted April 2, 2019 Share Posted April 2, 2019 (edited) I have a 96 2.5 Outback Can I replace both catalytic converters and weld a straight pipe? Would this change bring me any issues? Thanks.. Edited April 2, 2019 by Sam1968 Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted April 2, 2019 Share Posted April 2, 2019 what does your State do for emissions testing of your car? Quote Link to comment Share on other sites More sharing options...
FerGloyale Posted April 2, 2019 Share Posted April 2, 2019 It will throw a code for Catalyst Efficiency. 1 Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted April 2, 2019 Share Posted April 2, 2019 there can be ways to 'fool' the ECU with a resistor network. Or 'possibly' an ECU reflash....not sure on a 96 1 Quote Link to comment Share on other sites More sharing options...
Sam1968 Posted April 5, 2019 Author Share Posted April 5, 2019 Thanks guys for your replies, my state florida don't have a emission testing requirement , my other question is can the outback perform well with out the catalytic converters? Thanks. Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted April 5, 2019 Share Posted April 5, 2019 on a 96, the rear O2 sensor is a 'nanny' for cat. converter only. The ECU doesn't use it for a:f adjustment - but, if the signal is missing/outside its range, the cel will light. Dunno if that can be deleted with ECU Flash or some other tuning trick on a 96. So, the car should run fine - slightly better I'd think since you're a few pounds lighter with less exhaust restriction. 2 Quote Link to comment Share on other sites More sharing options...
el_freddo Posted April 6, 2019 Share Posted April 6, 2019 If you’re worried about exhaust restriction, get some larger cars designed for larger capacity engines. Keep cats, get “better” exhaust flow, probably not get a check light, winning. Whats wrong with your current cats? Cheers Bennie 1 Quote Link to comment Share on other sites More sharing options...
Sam1968 Posted April 6, 2019 Author Share Posted April 6, 2019 The performance is sluggish lack of power , i believe by removing the cats i can gain some power Thanks... Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted April 6, 2019 Share Posted April 6, 2019 you shouldn't rule-out some other issue. Knock sensors can be bad/cracked, the ECU pulls the timing and you lose power - often with no CEL set. common on older cars. and ,seems plenty of folks have fixed their cars with cheap K sensors from ebay or w'ever. 1 Quote Link to comment Share on other sites More sharing options...
comatosellama Posted April 7, 2019 Share Posted April 7, 2019 On 4/2/2019 at 2:21 PM, FerGloyale said: It will throw a code for Catalyst Efficiency. p0420 doesn't really matter if you dont have inspection though, my cruise still works when it turns on. 1 Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted April 7, 2019 Share Posted April 7, 2019 There is no performance benefit to doing this. You're just unnecessarily polluting the air you breathe. GD 2 Quote Link to comment Share on other sites More sharing options...
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