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6G Celicas Forums > 6th Generation Celica > Engine/Transmission/Maintenance
Lil-Joe101
I m sure this is a stupid quesyion but Im still learning and I want to know anything and everything I can, so here it goes.

Wut specific power gains come from and aftermarket header.

More specific wut fill I feel the most after I instal it?

How much WHP is added?

How many ft lbs of torque is added?

Wut is felt the most?
Euphoria
I only been in cars that have had headers to begin but from what I've heard, power gains on straight 4's are minimal compared to v6 and boxer engines with headers.

You are probably looking at a few horsepower and it will just breathe better, if you are gonna keep the car for a long time then just do it!
bseaman_5
There is a difference but it wouldn't even compair to boosting.. I also have a custom 2.5 over axel exhaust and that made it even better. You won't gain very much from it, but you should tell some difference.
elastikman
I install 4-2-1 Header about 4 months ago...

Is a very good @mod but only compensate if you have also mod your exhaust system.

The feeling...well..

You fell more torque my case at 4500 RPM...

Resume is a good mod you fell the diference you will not be sorry!!
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