is 2.5" piping too much
 

as the title says... I want a different exhaust system but what i want is only available at least with a 2.5" ... don't really know much about back pressure ect ect..

You can run 2.5 without an issue on a 1.8, will you be keeping the cats?

is it custom made? or does sum company make that big of an exhaust for our cars? hmmmm dynatek hadd sum nice power increases with there 2.5 inch exhaust. tanabe concept g axleback uses 2.4 inch piping for there exhaust. i don't see the problem in what ur tryin to do, go for it.

yea ii think ii am.. but figured 2.5 would be more suited for the 1.8 with some more power output..

and ii will be getting it custom make over the summer. or at least thats the plan.. want to get a lip kit first

our stock cat pipe is already 2.5 inches, the only thing that need replacing for the complete exhaust would be a header and the cat back portion. everytime i head down the shore i always pass this really nice lookin exhaust shop so ima check them out and see what they can do. do want it to be welded, clamped, or flanged?

you do that. probably clamped. and as far as headers go.. i been keeping an eye on my corolla friends and a company is making headers for the corollas (2009 nd up / 2zr engine as well) and are going to do a before and after dyno after its done. so ima wait for that first.

thats nice to know, any word on the company thats doing the headers?

i don't think it's too much. that's what I would do if I ever get a midpipe made

yea im deff. gonna consider going through it over the summer then and as for the headers nd mid pipes .. heres their main page.

http://www.ppeengineering.com/

Looking at the 1zz-fe header they have. Now that looks like a proper header. Are the corolla people doing a group buy? If so I need to get in on it!

all of there products look really good, seeing a full exhaust from these guys almost sounds promising.

yea they do nice work. i'll keep in touch if theres a group buy