ZZP Stainless Header Package

Exhaust - ZZP Stainless Header Package
Exhaust - ZZP Stainless Header Package

ZZP Stainless Header Package

15 reviews
Downpipe Option
Regular price $1,099.99
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  • In stock, ready to ship
  • Inventory on the way
Simply put, these are the best headers money can buy for the 3800 platform. Perfect fitment, 100% stainless steel, simple installation, complete. These are a must have for anyone with a goal of 300+whp! 1 3/4" primaries, 3" VBand exit, and a matching downpipe.
  • No issues with spark plug boots touching headers 
  • No issues with primaries sticking out past flanges and preventing seal 
  • No issues with warped flanges because we had them done on a water jet 
  • Only 1 front to rear connection uses stepped band clamp. No more alignment issues or leaking donuts, quickest install of any available headers.
  • 100% stainless to last a lifetime, will never rust
  • Easy access to O2 sensor 
  • Cleaner install look due to no flanges on the crossover pipe, and no bolts to break or rust
  • No ticking noise common with some brands of headers

These headers will require a ZZP specific header downpipe which is included, just make sure to select the appropriate one for your vehicle. Downpipes that are designed to bolt up to the OEM style rear exhaust manifold will not work.

If you run into a fan clearance issue, you could either trim the fan heat shroud or you could switch the fan blade/motor assembly from right to left.

Not recommended for '97 GTs with the 460 transmission because of tight clearances. We dont recommend headers for an NA setup, we would recommend our front and rear Powerlogs for an NA setup. 

ZZPerformance will give a $50 coupon code for returning your stock downpipe to ZZP for catalytic converter recycling. Please email Henry@ZZPerformance.com a picture of your stock OEM cat and he will email you a prepaid return label. Then put your old downpipe (or just the cat) in the package that the new one comes in and drop it off at any UPS shipper. We'll email you a coupon code good for $50 off of your next ZZP purchase! Returned units can be cut up but the OEM converter must be intact. Already bought our downpipe? We'll still offer the $50 coupon code but you'll have to pay for the return shipping.

To take advantage send to:

ZZPerformance
Attn: CAT coupon
2450 28th Street SW
Wyoming MI 49519

For everyone: Include your original order # and email address to send the coupon code. Write down your return tracking number for your records!

Fitment note: If you have issues with our headers hitting your fan assembly, we have a fan spacer kit here

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 customerservice@zzperformance.com if you have any questions.

Customer Reviews
4.3 Based on 15 Reviews
5 ★
67% 
10
4 ★
7% 
1
3 ★
20% 
3
2 ★
6% 
1
1 ★
0% 
0
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JB
02/08/2022
Jerry B.
United States United States

Update Update Update

I wanted to update my earlier posting about the headers not fitting my '07 Grand Prix GT. I gave two stars out of frustration of the headers hitting the cooling fan motor. There is a very simple solution to that problem. I bought two low profile cooling fans on Amazon and installed them in the fan shroud. It looks like a factory install as can be seen in the pictures. And my car must be an oddball because my transmission dipstick tube slipped right back into place. I had to do only some minor tweaking to get it positioned for the bolt to go back in. Other buyers have expressed much frustration over the trans dipstick tube, posting that it needs much bending to get it back in. I still must install the header down pipe but I have test fitted it. I found badly rusted power steering lines that must be replaced before I finish up. Anyone interested in these headers with the money to buy them should do so, absolutely. Just take your time installing them and address any issues that come up calmly and thoughtfully. Well worth it!

ZZPerformance ZZP Stainless Header Package ReviewZZPerformance ZZP Stainless Header Package ReviewZZPerformance ZZP Stainless Header Package ReviewZZPerformance ZZP Stainless Header Package Review
J
02/08/2022
James
United States United States

1999 Grand Prix GTP

Happy with the product definitely a difference in power. Have a few thinks against them. Font middle spark plug touches and melted my wire almost all the way thru before I could get a rap and sleeve for it that was another 80$ for both the sleeve and rap so make sure you buy that. The transmission dip stick is completely in the way and had to bend it a lot just to get it to fit trans dip stick got pinched so gotta buy that. It does not bolt up to OEM exhaust even with the down pipe provided so another 650$ on zzp or another aftermarket exhaust. Last but not least I ordered it without the EGR and it came with it anyway ZZP did change it so you can’t order it without anymore so I’m happy they fix that. Other then that it’s a good product just not for 1,115$ Could be better.

JB
02/05/2022
Jerry B.
United States United States

Can't get them on my '07 GT

The headers are indeed a work of art. But my car is a 2007 Grand Prix GT and these headers absolutely will not fit. The problem I have encountered is the front cooling fans. My GT is equipped with two cooling fans and the front header pipe is hitting the passenger side fan motor. It will not clear. I have included two pictures with the headers halfway in place. It needs to go further toward the passenger side 4 inches to line up. Has anyone else come into this issue? I haven't even gotten to the transmission dipstick tube that others have said is an issue. Any advice out there?

ZZPerformance ZZP Stainless Header Package ReviewZZPerformance ZZP Stainless Header Package Review
J
11/29/2021
JPL
United States United States

Great parts

They were out of stock for a while so I ended up getting a nice used set and had them coated. A day after I pick them up from the coater they were restocked and I'm building two gtps now so I talked the old lady into letting me buy a new set and I'm sending the whole exhaust front to back to get coated for the big build(Brown Bomber). Man I wish you guys sold Mustang parts!!!!

ZZPerformance ZZP Stainless Header Package ReviewZZPerformance ZZP Stainless Header Package ReviewZZPerformance ZZP Stainless Header Package Review
RS
11/12/2021
robert s.
United States United States

W body fitment issues

shipped quickly, quality product, but the trans dipstick tube doesn't fit with the headers at all. In an attempt to install it I damaged an AC line so I just wish there'd been some mention of this complication.

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