Good Header + cat to match up with WS2?

bsampson

New Member
What would be the best way to set up a free flowing non-bottlenecking full exhaust system bolting on to an apexi ws2? Because isn't the ws2 2.36 or 2.25 inches? (i have heard both) And there is no header with that collector size and stuff like that...Anyways what do you think is the best exhast setup to bolt to a ws2?
 

XslickwhitetegX

UKDM EXPERT
first need to know how much your willing to spend? that decides on what type of "good header" your talking about cuz you could go out and spend $250 on a Greddy on $1000 on a SMSP header.

also which do you want a 41 header or 421 header? are you lowered? we need more info to tell you a good choice header to get..

just remember you can go big< small on exhaust but NEVER small<big
 

98_gsr

New Member
^^ i think you are backwards....you can go small to big not big to small...big to small is called a bottleneck
 

TegSox

Super Duper Moderator
98_gsr said:
big to small is called a bottleneck
Click to expand...
Yep.

The origional Apexi WS is 2.36 inches, I'd assume the WS2 is the same.
The "best" setup depends on what your doing with your car/your other mods.
 


bsampson

New Member
XslickwhitetegX said:
first need to know how much your willing to spend? that decides on what type of "good header" your talking about cuz you could go out and spend $250 on a Greddy on $1000 on a SMSP header.

also which do you want a 41 header or 421 header? are you lowered? we need more info to tell you a good choice header to get..

just remember you can go big< small on exhaust but NEVER small<big
Click to expand...
im looking to spend anywhere from 300-400 bucks on a header And i probably want to get a 4-1 to gain some top end because ill be losing some top end with the ws2 exhaust not having straight through design..then again my car will be lowered about 1.7 inches so i dunno if the clearance will be good.
 

XslickwhitetegX

UKDM EXPERT
yea i dont even know what i was thinking typing small to big.. in my head i was thinking big <small haha im sick that's my excuses :lol:

IMO you should look into jdm itr header(2.5 collector)
 

JDMxDB8

Raceline USA
XslickwhitetegX said:
yea i dont even know what i was thinking typing small to big.. in my head i was thinking big <small haha im sick that's my excuses :lol:

IMO you should look into jdm itr header(2.5 collector)
Click to expand...
2.5" --> 2.36". Bottle-necking. Header collecter to the cat/b-pipe should be consistent or smaller to bigger. For example. 2.36" ---> 2.5".
 


TegSox

Super Duper Moderator
XslickwhitetegX said:
IMO you should look into jdm itr header(2.5 collector)
Click to expand...
Bad idea unless he's modding engine internals (pistons, cams) and going for over 190whp.

Going from a 2.5 inch collector to a 2.36 inch exhaust is....what....you...just...said...was...a...bad....idea.:???:
 

bsampson

New Member
TegSox said:
Bad idea unless he's modding engine internals (pistons, cams) and going for over 190whp.

Going from a 2.5 inch collector to a 2.36 inch exhaust is....what....you...just...said...was...a...bad....idea.:???:
Click to expand...
what would be the ideal free flowing header + cat then for an exhuast piping thats 2.36? this is the biggest question i need to know about if anyone could answer i would love ya :D
 
Last edited:

heykosal

Angkorian
^lol. Your best bet is to find a header with a 2.25in collector, and then get a matching cat from Carsound.

I know the DC 4-1 header has a 2in collector, that'll work too.
 
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