secondary cat......keep it or not?
#1
secondary cat......keep it or not?
Does anyone know the size of the exhaust at the secondary cat. Ive read somewhere that its 2.5 but i know that the rest of the pipeing is 2.25.
I want to get a high flow cat and a magnaflow resenator put in to finish my exhaust.
Do you think it would make a huge difference to eliminate the second cat all together?
Current mods; Injen intake, mmw header, magnaflow exhaust.
I want to get a high flow cat and a magnaflow resenator put in to finish my exhaust.
Do you think it would make a huge difference to eliminate the second cat all together?
Current mods; Injen intake, mmw header, magnaflow exhaust.
#2
i got rid of mine secondary cat and got welded an high flow cat insted into megan mid pipe. After that the car i way louder i mean way way louder. I don;t know what is the size of an stock mid pipe but megan is 2.5 so i guese that stock is smaller.
#6
just remove all the exhaust and go straight pipe with no cats, i've got megan and it looks like it has a cat but it doesn't. just save your stock pipes for smog time. its all bolt on bolt off
#9
The stock 2nd cat is 60mm o.d. inlet/outlet (made in Japan = metric). 60mm = ~2.36". If you're getting a hi-flow cat go with 2.5", they flow better than 2.25". Follow the cat with a 2.5-to-2.25" reducer then a 2.25" resonator; a 5" diameter will fit. An exhaust shop can do the work if necessary, just bring them the parts.
Also if you already have a header and delete the 2nd cat be prepared to stink out yourself, your passengers, and everybody else around you.
Also if you already have a header and delete the 2nd cat be prepared to stink out yourself, your passengers, and everybody else around you.
#11
just remove all the exhaust and go straight pipe with no cats, i've got megan and it looks like it has a cat but it doesn't. just save your stock pipes for smog time. its all bolt on bolt off
I am lucky here in WV.......... dont have to worry about smog test.
Thanks
#12
The stock 2nd cat is 60mm o.d. inlet/outlet (made in Japan = metric). 60mm = ~2.36". If you're getting a hi-flow cat go with 2.5", they flow better than 2.25". Follow the cat with a 2.5-to-2.25" reducer then a 2.25" resonator; a 5" diameter will fit. An exhaust shop can do the work if necessary, just bring them the parts.
Also if you already have a header and delete the 2nd cat be prepared to stink out yourself, your passengers, and everybody else around you.
Also if you already have a header and delete the 2nd cat be prepared to stink out yourself, your passengers, and everybody else around you.
Ive been looking around at some custom exhaust shops. I might get a custom exhaust w/ high flow cat and the biggest res i can get from magnaflow (maybe 6 round and 28 in. long). Or maybe just cut the old out and weld the new in......not sure.
I will see about the full custom exhaust prices first.
This was what ive benn lookin for in a reply thanks for the info Mid_Life_tC-risis
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