Custom Straight Piping Question

[mellowyellow]

OK I am lookin at Ideas for my exhaust piping...........
What would happen if i had replaced the piping from the header back to the muffler(minus the cat)? Would that effect my inspections, performance and would i have problems with the computer not reading correctly and flagging my warning lights????

 

[Aricjm15]

the computer only accounts for the first cat, as long as that is there you should not have a check engine light, and you car will be loud as ****

 

[matty00pro]

you car will be loud as ****

Loud in a bad way? Or just like 'modified' loud?

What if i replaced the piping,and with a larger size? Say, 1/2 or so larger than the stock piping? Any downside? How would i attatch this new pipe? Do i have to take off the cat/etc. to install this?

 

[matty00pro]

Say, 1/2 or so

=
1/2 inch, sorry

 

[biochembruin]

Loud in a bad way? Or just like 'modified' loud?

depends what you consider bad. it will be much louder, and may drone at highway speeds.

a full exhaust will give you great gains, provided you don't go way too big for a N/A car. you will probably fail inspections depending on where you live, and without a cat will get a CEL.

 

[323CiP5]

I don't think alberta has any vehicle inspections right now. what are you planning? turbo? or why not just get an aftermarket system?

 

[matty00pro]

Ummm, no big plans really, jus wanting to get some more HP, and start moding little things for now. Probably muffler system, air intake, grounding kit. Know any good retailers Canada?