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ZZP Ecotec Midlength Header & Downpipe Combo

  • 14 inch average primary length
  • Near equal length primaries
  • 3/8 inch flanges prevent warping and leakage
  • 1.5" primaries maximize NA setups
  • Larger 1.75" primaries maximize supercharged setups
  • O2 extension harness included
  • Grade 9 downpipe bolts included
  • Stainless steel downpipe

This is our most affordable header and downpipe package. It installs in under 2 hours. Freeing up the flow of your exhaust allows you to run smaller pulleys safely. Look for gains between 10 and 25 horsepower, depending on your mod level. The downpipe has a 2.5" exit so it connects to a stock or 2.5" aftermarket catback. This header/downpipe setup must remain as a combo and is not compatible with the OEM manifold and/or downpipe.

How to order your header/downpipe package:

Transmission: Automatic or Manual transmission. This determines the length of the downpipe.

Primary Size: 1.5" is recommended for NA applications (no boost). 1.75" is recommended for boosted applications. The 1.5" primary will have more torque than the higher flowing 1.75" header, it will also work great in boosted applications.

Extra O2 bung: Each downpipe comes with a bung for your rear o2 sensor, however If you would like a second o2 bung for a wideband o2 sensor gauge, then select the "Extra O2 bung for aftermarket wideband gauge" option.

 Our downpipes come with a high flow catalytic converter that is 48 state legal. Our catalytic converters will not pass California or New York state emissions. Please contact if you have any questions.

Customer Reviews
4.7 Based on 112 Reviews
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Brett K.
United States United States
Mid length header

Everything fit, like anything I've bought from zzp. Quality is good. Header paint arrived a bit scratched, but expected. Sounds nice, even with stock res and cheap fart can. Will get exhaust down the road

Darren S.
United States United States
Looks good sounds good but lack of info sucks

I like the looks and I love the sound it makes definitely seeing an improvement in my ****** car's fuel economy with a combination of other items. I gave only 4 stars because the black paint smokes and stinks so bad until it's done burning off (I would have been happier with just plain stainless pipes like my long tubes). And the fact that you need the extender for the front O2 sensor and the 90 degree **** but they neglect to tell you is a pain in the a$$. Only an extender for the rear is included.

Brad K.
United States United States
Good product

Everything was a perfect fit. Make sure you put the studs back in the block first then install header. Good amount of power added with dual pass end plate and 3.0 pulley with injectors. Got everything in two days.

Ryan W.
United States United States
Nice, but needed welding and paint

My only gripe towards this was how poor of quality the paint is MOSTLY, past that, the ****** is welded very poorly to the pipes. The flow would have been horrible had I just installed it, so I took it to a local friend who happen to like whiskey as much as I do, and we basically fixed it up Right with a welder and grinder and finally a fresh coat of ceramic paint. Installation was pretty easy for a 80k mile rusty stock header, I'm honestly surprised. The fit is tight, but not as tight as it would have been if a new gasket would have been supplied with it. I noticed from the other header pictures that the others come with a gasket, I'm assuming by the quality of this header, its not directly from ZZP nor is it made in house, because the quality just wasn't there sadly. The rest of the kit however is absolutely flawless, as always, I will be back for more! P.S. I lost my red zzp decals, send more lol.

Osahon B.
United States United States
The midlength package

Luv the sound of it and the popping of the exhaust makes me want to hit the gas every time I get under a over pass