Considering New Headers

[Tim Garceau]

I measured my Doug Thorley’s @ 1-3/4”. They have 2.5” downpipes which keep the scavenging going to the 3rd-Y.

3” collector downpipes into a 3” midpipe doesn’t promote midrange torque like JBA/Kooks/ARH. At least AFE provides a 3.5” midpipe.

 

[6speed4.7]

My pal just did catted AFE LT headers with the 3 1/2” mid pipe
Really nice
The fit, from a quick driveway look, is quite a bit different than my ARH
Lots of clearance on the driver’s side frame rail
A good finger-and-a-half under the 8speed transmission pan
They were professionally installed and looked like the dipstick tube retained all the stock bracket attachments- top of the tube just slightly over to the fender
Added bonus that they’re little cheaper than ARH

 

[RedSRT4Me]

My pal just did catted AFE LT headers with the 3 1/2” mid pipe
Really nice
The fit, from a quick driveway look, is quite a bit different than my ARH
Lots of clearance on the driver’s side frame rail
A good finger-and-a-half under the 8speed transmission pan
They were professionally installed and looked like the dipstick tube retained all the stock bracket attachments- top of the tube just slightly over to the fender
Added bonus that they’re little cheaper than ARH

Couldn't agree more. Been rocking mine for over a year. Passed emissions with the catted version. Nothing but good things to say.

 

[scott lass 18]

Hey All,

I'm toying around with the idea of getting some new headers for my '18 1500. Currently, performance wise, I have a k&n intake w/ a magnaflow exhaust. The main thing holding me back (price aside) is that I don't want my truck too loud. I'm mainly looking to "max out" the performance of the truck with bolt on stuff (ie. no cams, super chargers, ect.), don't really care much about sound. The exhaust I currently have I would consider "mild" in terms of noise and I'm worried that the addition of headers (specifically long tube) would make it too noisy. I live in a community and would rather not wake the neighbors up every time I drive.

I guess I'm wondering if anyone else is or has been in a similar situation? Are there long tubes that are designed or proven to be somewhat quitter? Or should I just get shorties and also save some $$?

Thanks,
-NTN

I put a flowmaster on my truck seem the cops didn't like it always around somehow when I drive somewhere ? so got another straight pipe line exhaust pie set up they use to turn the noise down a lot now sounds like my old corvette love it ! mpg same power same on it ok ! 100.00

 

[Eddie S]

Not sure if it is possible or a thing with these trucks but with my Caprice an X pipe or crossover adds torque and mellows the exhaust a bit...... that has been my experience if you are doing true duals anyways.

 

[Eddie S]

I put a flowmaster on my truck seem the cops didn't like it always around somehow when I drive somewhere ? so got a straight pipe line set up they use to turn the noise down a lot now sounds like my old corvette love it ! mpg same power same on it ok ! 100.00

No disrespect but i have absolutely no idea what you just posted..... none of it makes sense.