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· Country Hick
2001 Nissan Pulsar
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1,337 Posts
2.25" is standard on the Silvertop, Blacktop and the newer GZE's i believe... go with anything between 2.5-3" if you want something bigger.
 

· Immortal
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347 Posts
With a forced induction motor... bigger is almost always better. Hell, if those little n/a Civics can run 3" exhausts... you can do the same...
 

· Registered
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16 Posts
Discussion Starter · #14 ·
Hi again,
I'm almost done with my conversion. I've check with an exhaust shop and he recommended 2 inch exhaust piping for my 4AGZE. He said i'll lose power if the exhaust is bigger than that..I'm confused..Please advise..:(
 

· Registered
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412 Posts
2.5" ID pipe diameter is the proper size for a modified 4AGZE.

HKS, Fujitsubo and other brands use this size piping for 4AGZE powered AE92 / AE101 / AW11's.

Anything bigger or smaller is a waste of your time and money.

Hope this helps!
 

· Registered
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16 Posts
Discussion Starter · #17 ·
thanks for your reply.i guess guy didn't know wat he was talking,just wanted to make the sale..won't be going to exhaust shop..howabout the center piece..wat is recommended or shall i use none.

thanks guys..
 

· Will Work For Boost
FX16 GTS
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177 Posts
DerekDorifto said:
2.5" ID pipe diameter is the proper size for a modified 4AGZE.

HKS, Fujitsubo and other brands use this size piping for 4AGZE powered AE92 / AE101 / AW11's.

Anything bigger or smaller is a waste of your time and money.

Hope this helps!
Exactly.

2.5" is perfect for the 4AGZE. Those little pictures in my signature are from my 4AGZE swap into an AE82.
 

· Registered
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412 Posts
On my 88 MR2 SC I lost a little low end power when I got rid of my catalytic for a straight pipe, so I put it back on because I mostly do my driving on the local roads. But for high RPM driving on the highway it felt like the motor wanted to rev a lot more freely with the catalytic restriction gone. The way I can best explain it is, when you remove the cat it feels the same as when you first put on a performance exhaust.

2.5 is perfectly sized, my friend has that size HKS Hiper exhaust on his 4AGZE AE86 and I can't believe this exhaust was originally designed for NA application! It really suits the power of the 4AGZE nicely, his car is quick so yours must be insane RavenX!

That's a sweet looking hatchback too!
 
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