[gunnut]

I'm taking my car in to the muffler shop monday to get some new exhaust, my old intermediate pipe had a hole in it. (so I ripped it all off and drove with open headers the past couple days hehehe) now my question is...should I replace it with the normal 2.25" pipe, or should I get a bigger one made, like 2.5" or 3"? Ive heard that bigger pipes actually rob the car of low end power, is this true? I need to get my facts straight before I spend my money.

 

[jakerooni]

Go with the 2.25" piping but make sure it's mandrel bent piping and not crush bent.

 

[banchee_z]

The downpipe needs to be narrow to encourage exhaust velocity, but the pipe after the cat can be enlarged because all it does is lead the emissions to where they should go. That's my understanding.

 

[jusumguy69]

how did you manage to run open headers with out gettin pulled over?? :nono:

 

[gunnut]

how did you manage to run open headers with out gettin pulled over?? :nono:

I dunno I just got lucky

And about the mandrel bent piping, there aren't any shops in the area that have a mandrel bender, I've already checked. and I don't really have the time to order one and wait for it. I need to get my car back to normal before I DO get pulled over.

 

[banchee_z]

Stuff two coffee cans with some steel wool and stick them over your headers. Steel pack. I dunno, see if it makes it quieter. Dunno if they'll burn or melt, but the steel will be fine.

 

[gunnut]

lol :lol:

 

[intmd8r]

The general Hot Rod rule is to use pipes 1/4" bigger than stock for the most H.P and torque out of your modified engine. Using a stock size downpipe, and having 2 1/4" pipe cat back does make sense. High preasure moving into low preasure = better air flow = more power.

 

[reaper]

dont get bigger pipes. they do rob u of the low end. personally, id just run it w/o the exhaust.lol

 

[z24_ss]

dont get bigger pipes. they do rob u of the low end. personally, id just run it w/o the exhaust.lol

Does this statement make any sence? Kinda redundant if you ask me :roll:

 

[stu71584]

do you really have headers, or are u talking about the stock manifolds?

 

[ctimm_rs]

This is off the Dynomax website

Stock: 2.25"
Modified: 2.5"

 

[soup]

dont get bigger pipes. they do rob u of the low end. personally, id just run it w/o the exhaust.lol

Does this statement make any sence? Kinda redundant if you ask me :roll:

makes no sense at all