The dealwith test pipes

[djrenok]

So imfinallydroppingmy motor in, and deciding to drop the CAT out and get something less restrictive .....I have a 3" Kteller exhaust catback,and using a 3" downpipe. Should I use a test pipe instead of the stock CAT or whats the whole thing about that? Using a stock cat with a turbo setup doesnt sound right to use....

 

[BMac00EX]

Not worth the 1hp and all the other Plants, animals, and Ozone that will be gettin killed. better off with a high flow plus u wont get a CEL . unlke a tp

 

[hardcore97]

i ran a test pipe just fine with no CEL for it. i would either get a test pipe or a high flow cat with 3 inch inlet/outlet

 

[ryanM]

if you are turbo a test pipe will be fine.

 

[slowcivic E G]

you will make much more than 1hp with a turbo setup by getting rid of the cat. that will restrict the motor a whole lot. NA or boost. any restriction after the header/downpipe is back pressure and losing power.

 

[djrenok]

you will make much more than 1hp with a turbo setup by getting rid of the cat. that will restrict the motor a whole lot. NA or boost. any restriction after the header/downpipe is back pressure and losing power.

Yeah thats what I thought. I bought one yesterday......I didnt see 3" DP into a stock cat then to a 3" exhaust sounded like it was good idea........is it loud with the test pipes?

 

[hardcore97]

the turbo will quiet it down quite a bit.

 

[TiiM iiS l3eAsT]

im running a flex pipe....with no test pipe or cat.....f**k em ....hahaha im also friends with the inspector thou so i can get away with it

 

[xxsenceo89x]

Not worth the 1hp and all the other Plants, animals, and Ozone that will be gettin killed. better off with a high flow plus u wont get a CEL . unlke a tp

dont post if you dont know. on a bone stock sohc youre correct but this is for a boosted engine. less restriction = quicker spool and easier flow out =more power

 

[TiiM iiS l3eAsT]

dont post if you dont know. on a bone stock sohc youre correct but this is for a boosted engine. less restriction = quicker spool and easier flow out =more power

you will gain more than 1hp from taking out the cat on a boosted engine...

 

[SlowTEC]

A 3" High Flow Cat wouldn't be horrible for performance, and would be better for the environment. However, straight pipe definitely yields the best results, who cares about global warming afterall... .

 

[bizoneoeh]

I run a straight pipe with a 2.75" exhaust and love it. It's not loud at all, just a nice deep tone.

 

[TiiM iiS l3eAsT]

I run a straight pipe with a 2.75" exhaust and love it. It's not loud at all, just a nice deep tone.

yea i run a straight 2.5" and its not loud either....i wish i woulda went with 3" now thou

 

[d-proff]

you only get a CEL from a test pipe if your obd2 but if you are obd2 and dont want a CEL get one with the o2 sensor spot for it to go into

 

[hondadna]

With my high-flow I can read the news paper threw the damn thing and have passed every E-check in the last 8 years....

 

[djrenok]

you only get a CEL from a test pipe if your obd2 but if you are obd2 and dont want a CEL get one with the o2 sensor spot for it to go into

Yeah I have a 02 sensor bung on the downpipe. Testpipe doesnt have one......Its just a plain ST 3" pipe.