stock exhaust vs. true dual
#1
Registered User
Thread Starter
Join Date: Jul 2004
Location: Hattiesburg, MS
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
stock exhaust vs. true dual
I was talking to a service writer at my local Toyota dealer about replacing my stock single exhaust with custom true dual exhaust (Flowmasters or similar), leaving the catylitic converters on. He told me that on the V8 Tundras, it actually decreases torque/HP.
I really don't understand it (and he couldn't explain it either), but he maintains that he seen dozens of Tundras lose their punch by switching to dual exhaust. He recommended buying the TRD or Borla exhaust upgrade, but they aren't a "true" dual exhaust system (and are about twice as much). Anyone care to weigh in on this?
I really don't understand it (and he couldn't explain it either), but he maintains that he seen dozens of Tundras lose their punch by switching to dual exhaust. He recommended buying the TRD or Borla exhaust upgrade, but they aren't a "true" dual exhaust system (and are about twice as much). Anyone care to weigh in on this?
#5
I mean more along the lines of saying something and not backing it up.
Backpressure? Absolutely. You need it. So, you could theoretically screw up your powerband by going too big (dual). I would go with a custom single pipe system from an exhaust shop. That will save you a bundle. What type of sound are you looking for?
Backpressure? Absolutely. You need it. So, you could theoretically screw up your powerband by going too big (dual). I would go with a custom single pipe system from an exhaust shop. That will save you a bundle. What type of sound are you looking for?
#6
Registered User
Join Date: Jun 2004
Location: Queens, NY
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
I don't know much about back pressure, but just a thought. If you want to go dual, couldn't you just decrease the size of the pipes you use to accomodate a dual system, to compensate for the extra pipe?
Trending Topics
#8
I don't know if the same holds true for Toyotas, but true dual exhaust is'nt considered necessary on small block chevys unless you're making at least 300 horsepower.
#9
Registered User
Join Date: Jun 2004
Location: Austin, TX
Posts: 483
Likes: 0
Received 0 Likes
on
0 Posts
Very few engines actually need dual exhausts; it's usually just for appearance. However I do get the feeling the dealer just wants to sell you a TRD piece so they can make more $$$. Having said that, there might be some truth to what he says; many trucks have deliberately constrictive exhausts because it makes more low end torque.
#10
Registered User
Thread Starter
Join Date: Jul 2004
Location: Hattiesburg, MS
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by <96 Runner>
I mean more along the lines of saying something and not backing it up.
Backpressure? Absolutely. You need it. So, you could theoretically screw up your powerband by going too big (dual). I would go with a custom single pipe system from an exhaust shop. That will save you a bundle. What type of sound are you looking for?
Backpressure? Absolutely. You need it. So, you could theoretically screw up your powerband by going too big (dual). I would go with a custom single pipe system from an exhaust shop. That will save you a bundle. What type of sound are you looking for?
Last edited by armybombtech; 07-22-2004 at 11:57 AM.
#11
My vote is a custom 2.5" cat-back single into a 50 series flowmaster or 18" magnaflow.
If you just have to have duals, then you may want to go stock size into a single in dual out 2 - 2.25" and have the pipes custom placed (if they will fit).
If you just have to have duals, then you may want to go stock size into a single in dual out 2 - 2.25" and have the pipes custom placed (if they will fit).
Thread
Thread Starter
Forum
Replies
Last Post
the1998sr5
95.5-2004 Tacomas & 96-2002 4Runners
15
07-14-2020 08:35 PM
priest16
84-85 Trucks & 4Runners (Build-Up Section)
15
08-06-2015 07:43 AM
crashburnoveride
86-95 Trucks & 4Runners
1
07-10-2015 06:39 AM