Headers or downpipe?

Supercharged wrote:

so do headers come with a downpipe?

YES

98riviera98 wrote:

Supercharged wrote:

so do headers come with a downpipe?

YES

did i really make someone mad??

sorry that i wasnt sure of the answer, thank you so much 98 riviera

Don't worry, Travis is just a little over-exuberant at times.

new 3inch zzp sorty downpipe installed and 3inch pipe in place of the cat. also removed resonator and magnaflow mufflers with some nice tips.

Looks good on the ground, How does it sound?
You said u used magnaflow mufflers. did you re-use the stock tail pipes, if so how did you fit them. i thought they were 1 3/4" diameter. Can't tell by the picture.

i'll take some installed pics and a exhaust clip later 2day. it is alot louder but it don't bother me at all i like it. im used to driving 500hp v8s lol.

i got a exhaust leak tho the stock doughnut gasket is falling apart. i got 2 find a new 1. when its fixed it should quiet down some. not only that but the leak is killing my boost!

What have you got for V-8's in the 500 hp range?
Nothing like the sound of a good ol' American V-8.!!!!

86 monte carlo with a 355sbc 460hp. and i got a 454bbc with 600hp going in my project 87 monte carlo i been slowly working on 4 a couple years.

Nice!!!
Post some pic's when your done.

i did my own 3inch downpipe and welded in a peice of 3inch pipe in place of the cat 2.

"Headers can offer you even more performance than a just installing a muffler because headers provide air to your engine smoothly and evenly which can boost performance and horsepower."

bahaha!
had to post this, dunno how i found it... I lol'ed
http://www.cartuningcentral.com/enhance-your-car-with-a-new-muffler

Where's the +/- buttons at other sites when I need them?!!!

Karma wrote:

"Headers can offer you even more performance than a just installing a muffler because headers provide air to your engine smoothly and evenly which can boost performance and horsepower."

bahaha!
had to post this, dunno how i found it... I lol'ed
http://www.cartuningcentral.com/enhance-your-car-with-a-new-muffler

That's funny! I left a comment about how funny it was, but I don't think the moderator will approve it.

i am putting together what i call a stage 1 package for the riv, i got a 3.4 pulley, 104's, 180 t-stat. now i don't want to spend a pile of money on this car in mods, just a few. thinkin on either getting a cheap set of used headers maybe, or just do a 3" downpipe. i looked at zzp and they got dp's for w-body and h-body, i know neither will directly fit without some modding, which one do you think would require the least amount of modding to get it to fit.?

ssei turbo wrote:

i am putting together what i call a stage 1 package for the riv, i got a 3.4 pulley, 104's, 180 t-stat. now i don't want to spend a pile of money on this car in mods, just a few. thinkin on either getting a cheap set of used headers maybe, or just do a 3" downpipe. i looked at zzp and they got dp's for w-body and h-body, i know neither will directly fit without some modding, which one do you think would require the least amount of modding to get it to fit.?

just get some XS headers.. and call it a day

where abouts do i find these "xs headers"? i haven't heard of them..

www.ssautochrome.com
Look for Product # Pontiac, Grand Prix, Regal.
If I remember correctly.
There is a Write up on here, called "cheap headers" or something like that.

Here it is: https://rivperformance.editboard.com/series-ii-engine-transmission-f4/cheap-headers-pace-setter-autochrome-etc-t510.htm?highlight=cheap+headers

I have a set on my car and they were worth every penny. Only $300.00 plus $50.00 for shipping.
They have Steel mounting flanges, but everything else is stainless steel.
Some of the earlier reports on these weren't to good, but the product has gotten better and fit very well.

Rickw wrote:

www.ssautochrome.com
Look for Product # Pontiac, Grand Prix, Regal.
If I remember correctly.
There is a Write up on here, called "cheap headers" or something like that.

Here it is: https://rivperformance.editboard.com/series-ii-engine-transmission-f4/cheap-headers-pace-setter-autochrome-etc-t510.htm?highlight=cheap+headers

I have a set on my car and they were worth every penny. Only $300.00 plus $50.00 for shipping.
They have Steel mounting flanges, but everything else is stainless steel.
Some of the earlier reports on these weren't to good, but the product has gotten better and fit very well.

now thats a reply

+

i am going to buy ported exhaust manifolds its cheaper, good idea anyone?do i lose that much HP by doing this over the SLP Headers? if not i'm looking at the wide body store and they have ones for Chassis:W Body (Regal, Grand Prix, Monte Carlo, Impala) and Chassis:H Body (Bonneville, LeSabre) i don't know shit, i have a 99 riviera which one is for my car? also do i use the regular gaskets?

The kit I bought was for a Grand Prix. For the price of the manifolds, bout $100 bucks more and you get the headers. They were $349.01 shipped. I also was considering ported manifolds or P-logs, but opted to spend the extra for headers, and I'm glad I did.

jonnyb411 wrote:

i am going to buy ported exhaust manifolds its cheaper, good idea anyone?do i lose that much HP by doing this over the SLP Headers? if not i'm looking at the wide body store and they have ones for Chassis:W Body (Regal, Grand Prix, Monte Carlo, Impala) and Chassis:H Body (Bonneville, LeSabre) i don't know shit, i have a 99 riviera which one is for my car? also do i use the regular gaskets?

Ported manifolds are a good idea if you want to pick up a little extra mid/top-end power and keep the quiet, luxury car feel. It's an easy, inexpensive route, and can be combined with a 3" downpipe for even better gains.

Headers will not cause you to lose horsepower, but it can cause you to loose a little bottom end torque. Headers help to shift torque from low-end to mid/top end, which is not really a bad thing considering we already have a lot of low RPM torque to begin with. However, if you swap the SC pulley to a smaller one, you will gain back the low-end torque and keep the mid/upper band HP gain. For this reason, it is usually not wise to only add headers - it makes more sense if you are doing other things to the car to increase power. And of course, headers are noisier than OEM or ported manifolds, so that may impact your decision.

Are theses Headers can be good for an 96 riviera?? https://www.zzperformance.com/grand_prix/products1.php?id=598&catid=110

yes but the ones i have for sale would save you some money