aFe 2.5" vs 3.0"
#1
JK Enthusiast
Thread Starter
Join Date: Dec 2011
Location: Strathroy, ON.
Posts: 197
Likes: 0
Received 0 Likes
on
0 Posts
aFe 2.5" vs 3.0"
Looking at buying the aFE Power Mach Hi-Tuck Cat-Back exhaust and I see there's two options... a 2.5" pipe and a 3.0". Am I going to notice any real difference in sound or performance between the two sizes? An extra half inch is another 50 dollars.
#2
JK Junkie
I would stay with the 2.5" you need engine back pressure to generate torque. Too much free flow exhaust will produce more HP but a loss in torque. I prefer equal amounts of both for well rounded performance.
#3
JK Super Freak
Join Date: Apr 2009
Location: Dallas, TX
Posts: 1,331
Likes: 0
Received 0 Likes
on
0 Posts
What he said. 3" for a V8 otherwise you'll lose a lot of torque. 2.5" seems to be the magical number for a naturally aspirated V6 motor 3.0L and bigger. A small v6 and a 2.25 maybe better.
A larger diameter exhaust pipe will move the power up higher in the rpm range...good for racing around a track....bad for offroad and normal street driving.
Best bang for the buck? Re-gear.
Sent from some string and a few tin cans.
A larger diameter exhaust pipe will move the power up higher in the rpm range...good for racing around a track....bad for offroad and normal street driving.
Best bang for the buck? Re-gear.
Sent from some string and a few tin cans.