hey guys, once again I'm looking for some tips form y 4k what would be the best exhaust that gives her a nice note but also adds a bit of performance to

and ideas are great

cheer

benny

Extractors, 2" pipe, hotdog and sports exhaust, under diff. That's what I run, sounds great.

 

Cost me about 400 but had a mate weld most of it up.

 

Don't expect a mad power surge , but chuck on a good air filter and it'll sound mad.

Straight pipe.

don't get a sidepipe off the factory manifold. mine sounds like arse but is really loud to compensate. if you get extractors and at least one resonator/hotdog/turbo muffler or whatever you call them it's hard to go wrong. brent's car has two and i think that it sounds good.

I just removed the back box and replaced it with copper flutes. Sounded amazing!

twin rear half in a 2.5 inch will make it a deeper note

2 hotdogs

i think 2.5 is a bit big for a stocko K motor though?

 

i would just go, 2", hot dog in the middle, decent straight through muffler on the rear.

 

or if all else fails, one of these welded on the back should do the trick.

 

Even 2" is bigger than you need. Get the extractors, which end in a 2" pipe, run it 2" to a 2" resonator, the longest you can buy, then run inch & 3/4 to the back with a tri-chamber muffler not a straight-through.

 

The resonator takes out the harsh crackle and stops it backfiring.

 

Sounds great, a little louder that sotck, breathes well and never attracts the cops.

 

Maybe we should start posting up some sound tracks!

Maybe we should start posting up some sound tracks!

This could be fun.

When i had my ke70,

 

Ran some cheap extractors

 

Ran 2" system straight back with a hotdog on flanges (so i could take it in/ out) to under diff to 2 2" Tips

 

Seemed to go better up top end and sounded pretty good,

 

Was propper loud without the hotdog but with it in it was a good level but still sounded pretty good

Edited February 22, 201115 yr by Jono.C

I agree with Altezza club.

 

Big pipe = less gas velocity = less power.

 

You need a resonator IMO, will clean up the sound.

 

Use a quiet muffler, cannons are not endorsed by me, or most people that buy them 5 minutes after installation.

 

Extractors are a good idea, Id even neck it down to 1 & 3/4 or 1 & 7/8 inch right after the extractors if it were my car.

mine retains standard manifold and front pipe to hotdog then 2.5 to hotdog the diff into twin 2.5 pipes out the back

total cost was $10...

 

performance is the same ( crap)

doesnt sound like a 4k = win

performance is the same ( crap)

doesnt sound like a 4k = win

 

Sounding like some kind of psychotic prehistoric animal through the Clem 7 after Terry gets his hand on your car... pure WIN.

 

Until the inevitable defect :laff:

 

THEN get a sports exhaust. :y:

so far 2 inch sports it is :) also weres the cheapest place in ADELAIDE to go :)

Running a Redline (or similar) air cleaner makes them sound a bit angrier

 

Headers will give you a nice 'vibrato' noise

 

Anything bigger than 2" pipe is a waste of time

 

Not running a resonator will drive you and every dog in your street insane

 

Lukey tri-chamber mufflers have the best note on a 4k in my experience

 

And no it won't go any faster, but it'll sound like it does.