Kinda noob question. What is the differance from Shorty Headers and the long ones other than the obvious length.

 

Shortie headers retain the stock (or aftermarket) catalytic converters. Longtube headers are indeed longer, and they eliminate the cats.

You will also sometimes see the term "off-road pipes", which just means that the pipes replace the section where the cats were located.

 

definitely not carb legal, hence the name "off-road pipes".

 

will you get enough back pressure without the cats if your car is n/a??

 

^Good to know^


Thanks for the posts I was just curious about it. Thanks again.

 

backpressure is not what you need. you need more exhaust volume to fully benefit from LT headers (F/I for example). your car might feel more sluggish if you stay N/A with long tubes because your exhaust volocity will be slower with the less restricted setup. not sure how much long tubes really affect a N/A car but this is the theory nonetheless.

here's an experiment: using a garden hose with no attachment, turn on your water to a set amount and see how far the water goes. now pinch/bend the hose near the opening little by little and see if the water travels farther. now pinch it a lot more and see how far it goes again. about halfway pinched should yield the farthest distance (highest velocity). it all comes down to how much exhaust you got coming out in the first place, then how fast you can make it travel. i understand its never as simple with engines but its still a BASIC analogy.

 

i get what your saying

 

ah backpressure...

 

hahaha.....yeah really. i'll stop.