Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories

Sponsored by:

2.25 or 2.5?

Reply Subscribe

Search this Thread

Old

Dec 7, 2008 | 01:29 PM

#1

Thread Starter

TECH Enthusiast

iTrader: (4)

Joined: Nov 2008

Posts: 517

Likes: 0

Default

2.25 or 2.5?

i am in the process of droping a 5.3 into my s10 with ls1 cam, ls6 intake manifold, sanderson shortys...i was told i should run 2.25 if i was to run true duals...i ordered the 2.25 magnaflow x pipe and 2.25 dual in dual magnaflow muffler...do you think this enough flow? or should i send those back and run the 2.5?

Old

Dec 7, 2008 | 02:27 PM

#2

TECH Addict

iTrader: (70)

Joined: Sep 2003

Posts: 2,525

Likes: 2

From: Springfield IL

Default

2.25 tube flows enough for 243rwhp using the 2.2cfm per hp rule of thumb

Old

Dec 7, 2008 | 02:32 PM

#3

TECH Addict

iTrader: (11)

Joined: Oct 2003

Posts: 2,442

Likes: 6

From: Topeka, KS

Default

I think if you ever plan on going FI or nitrous then I would feel better about 2.5" duals.

Old

Dec 7, 2008 | 08:09 PM

#4

Thread Starter

TECH Enthusiast

iTrader: (4)

Joined: Nov 2008

Posts: 517

Likes: 0

Default

i am planing to keep upping the power whenever i get a chance...so i guess i will send the 2.25 back and pay all the extra shipping and run 2.5

Old

Dec 7, 2008 | 08:46 PM

#5

TECH Fanatic

iTrader: (4)

Joined: Jul 2003

Posts: 1,075

Likes: 0

From: Orange Park/ Jacksonville, FL

Default

I'd go 2.5" if I were you, especially if you plan on future mods.

Old

Dec 7, 2008 | 11:42 PM

#6

BackinBlack02SS

TECH Resident

iTrader: (7)

Joined: Feb 2004

Posts: 879

Likes: 0

Default

Two 2.25 inch pipes have roughly the same area as one single 3 inch pipe. There are people who make a ton of power with a single 3 inch catback.

Reply Subscribe

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 12:49 AM.