this has probly been covered but searched to no avail!

I'm bringing my ke panno to get exaust made 2morow,just wondering whats best size and setup for my van.i have a 4k with reground cam,twin 40 dellorto's,exstractors,ect.what diameter is best?and what should i ask for?want good free flowing,raspy would be good...thanks

exhaust*

 

don't go bigger than 2inch is a rule of thumb for k motors

There is actually a thread called "Hotdog Mufffler I think was floating round earlier.

 

As said. 2inch from the tube headers joined with a flange, 2inch resonator into a 1 and 3/4inch pipe and then a glass pack sports muffler at the rear. FTW!!!

 

If you had a 5k i'd advise a 2inch through and through...

Edited July 12, 201115 yr by GJM85

ive got a 1 3/4" exhaust on my 4k, worked similar to yours minus the dollerets.

 

is sweet and sounds awesome, not t loud etcetc.

1 3/4 or 2". No bigger.

 

I had a 2 1/4 on my stonking 1400cc 3K, and it was maybe a bit big even on that.

Got carpet and soundproofing all around the inside of the van...

 

Too much noise will be much more noticeable in there than in a saloon.

 

here-

 

http://autospeed.com.au/cms/article.html?&A=0383&P=1

thanks guys,the exaust shop dude reckoned 2' but wasnt sure if it would be too big..i would like some shotgun style straight pipes at the rear but don't want to jeperdise the little power i'll have,so would i be better off with a muffler at rear?

For the sake of your sanity and aural well being, yes, go the muffler.

true,i just have carpet in the rear.yeah don't want it mad loud really just nice raspy note

wikipedia - Aftermarker exaust parts

This should give you a better understanding of what your doing.

I run 1.75 extractors into a 2 inch exhaust on my worked, twin carb 5K. It boogies.