Dual Exhaust on a 4 Cylinder? - Toyota Nation Forum : Toyota Car and Truck Forums
Truck Archive Older archived threads about Toyota trucks

 
LinkBack Thread Tools Display Modes
#1 Old 12-30-2004, 11:37 PM
Street Truck
 
Jonathan86's Avatar
 
Join Date: Dec 2004
Location: Fayetteville, NC
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
Question Dual Exhaust on a 4 Cylinder?

Is a function dual exhaust possible on a 4 cylinder? To be functional would you have to have some type of custom header? Would a T pipe running out from the muffler work? What about a T pipe running from the cat, then to 2 mufflers? Just thinking out loud. Thanks for any replies.

.

(New Truck Site)
Jonathan86 is offline  
Sponsored Links
Advertisement
 
#2 Old 12-31-2004, 01:47 AM
400whp club here I come!!
 
Piddy's Avatar
 
Join Date: Dec 2003
Location: LA
Posts: 3,546
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
It wouldn't be a true dual exhaust... but you could do it. For it to be a true dual you would have to have one bank for each exhaust.
Piddy is offline  
#3 Old 12-31-2004, 10:22 AM
Official TN Member
 
nofear4189's Avatar
 
Join Date: Oct 2004
Location: Pennsylvania
Posts: 406
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
you can. the best way would be to hook on a T pipe after the cat and use 2 mufflers. Then 1 pipe out of each muffler to either dump out the side or back of the truck. Alot of people on here use flowmaster 40 and 50, or borla mufflers.

-Adam-

1992 Toyota pickup 4x4. 3" body lift, Skyjacker Nitro 8000's, ICW alloy rims, 31X10.50" tires, K&N drop-in w/ airbox Mod. Sony Xplod head unit, MTX & kicker front speakers, BAJA and APC lights up front, Accel SS coil
nofear4189 is offline  
#4 Old 12-31-2004, 11:15 AM
Official TN Member
 
Join Date: Dec 2004
Location: Knoxville
Posts: 103
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
That would not be true duals. You cannot have true duals on our 4 cylinder. It simply can't be done. There is only one manifold.
black93DX is offline  
#5 Old 12-31-2004, 11:41 AM
Official TN Member
 
Join Date: Mar 2004
Location: lake charles,La
Posts: 263
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by black93DX
That would not be true duals. You cannot have true duals on our 4 cylinder. It simply can't be done. There is only one manifold.


agreed
tater_tot is offline  
#6 Old 12-31-2004, 12:48 PM
Street Truck
 
Jonathan86's Avatar
 
Join Date: Dec 2004
Location: Fayetteville, NC
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
Performance wise, is it best to just keep a single exhaust or dual on a 4 cylinder?

.

(New Truck Site)
Jonathan86 is offline  
#7 Old 12-31-2004, 01:11 PM
Official TN Member
 
Join Date: Dec 2004
Location: Knoxville
Posts: 103
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
The best performance wise would be buy a bolt-up cat-back system OR run custom 2 1/4 inch pipes(no larger) through a good muffler to a 2 1/2 tip. That would give you the best combination of HP and TQ.
black93DX is offline  
#8 Old 12-31-2004, 04:24 PM
TTORA Hawaii Member
 
Join Date: Nov 2004
Location: Ka'a'awa, Hawaii
Posts: 93
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by black93DX
You cannot have true duals on our 4 cylinder. It simply can't be done. There is only one manifold.
not true, anything can be done. a custom header could be made to have 2 cylinders each feeding into their own muffler. it would be expensive and a waste, but it could be done

it would be a waste to do anything more than a single in/dual out muffler. you would end up loosing alot more than you would gain. just throw on some headers and get a cat-back system.
amber00dak is offline  
#9 Old 12-31-2004, 07:30 PM
Street Truck
 
Jonathan86's Avatar
 
Join Date: Dec 2004
Location: Fayetteville, NC
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
Could someone explain to me what a "cat-back" system is? Is it just a high flow cat?

.

(New Truck Site)
Jonathan86 is offline  
#10 Old 12-31-2004, 07:35 PM
TTORA Hawaii Member
 
Join Date: Nov 2004
Location: Ka'a'awa, Hawaii
Posts: 93
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by Jonathan86
Could someone explain to me what a "cat-back" system is? Is it just a high flow cat?
cat-back just means that you are changing the exhaust system from the catalytic converter back. this is the most common way because you dont have to worry about messing with your cat and screwing up the O2 sensors or emissions problems. and as long as your cat is in good condition and you are naturally aspirated or not heavily modded in the engine department, the factory cat is more than enough
amber00dak is offline  
#11 Old 12-31-2004, 08:37 PM
Street Truck
 
Jonathan86's Avatar
 
Join Date: Dec 2004
Location: Fayetteville, NC
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
Quote:
Originally Posted by amber00dak
cat-back just means that you are changing the exhaust system from the catalytic converter back. this is the most common way because you dont have to worry about messing with your cat and screwing up the O2 sensors or emissions problems. and as long as your cat is in good condition and you are naturally aspirated or not heavily modded in the engine department, the factory cat is more than enough
So when you say "cat-back," your changing the headers? Or are you changing the muffler? I've got a Flowmaster Series 40. I think it might be time for a new cat though - probably a high flow cat. I'm going to be looking into LCE headers as well.

.

(New Truck Site)
Jonathan86 is offline  
#12 Old 12-31-2004, 08:59 PM
TTORA Hawaii Member
 
Join Date: Nov 2004
Location: Ka'a'awa, Hawaii
Posts: 93
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by Jonathan86
So when you say "cat-back," your changing the headers?
not unless you have headers hanging off your tailpipe

Quote:
Originally Posted by Jonathan86
Or are you changing the muffler? I've got a Flowmaster Series 40. I think it might be time for a new cat though - probably a high flow cat. I'm going to be looking into LCE headers as well.
if you look at a view of an exhaust system, you have the manifold (or header), the catalytic converter, and the muffler. the components go in that order from the front of the truck to the back. so cat-back means your swapping out the system from after the catalytic converter and back. if you just change the muffler, but keep the stock piping....that isnt a cat-back system. its just a muffler swap.

a high flow cat would be a waste unless you are running a S/C or turbo or have a heavily modded engine. a stock replacement would be more than adequate. besides, you will probly have too much flow if you run the high flow cat with headers and you would loose power

Last edited by amber00dak; 12-31-2004 at 09:43 PM.
amber00dak is offline  
#13 Old 12-31-2004, 09:10 PM
Street Truck
 
Jonathan86's Avatar
 
Join Date: Dec 2004
Location: Fayetteville, NC
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
So your saying a "cat-back" is swaping out the cat, piping, and muffler for better performing parts?

.

(New Truck Site)
Jonathan86 is offline  
#14 Old 12-31-2004, 09:45 PM
TTORA Hawaii Member
 
Join Date: Nov 2004
Location: Ka'a'awa, Hawaii
Posts: 93
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by Jonathan86
So your saying a "cat-back" is swaping out the cat, piping, and muffler for better performing parts?
no, everything after the cat is removed and replaced. the cat isnt touched
amber00dak is offline  
#15 Old 12-31-2004, 09:53 PM
Street Truck
 
Jonathan86's Avatar
 
Join Date: Dec 2004
Location: Fayetteville, NC
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
So just piping and a muffler?

.

(New Truck Site)
Jonathan86 is offline  
 

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Truck, SUV and Van Forums > Hilux (Pickup) Forum > Truck Archive

Bookmarks

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome