Looks like you're using an unsupported browser, so some features might not work. We recommend upgrading your browser for a better experience.

Top Speed Pro-1 Stainless Steel Headers VQ35HR VQ37VHR RWD & AWD - Nissan 350Z 370Z / Infiniti G35 G37 Q50

Manufacturer: Top Speed
Product # {{ productPartNumber }}
Discontinued / No Longer Available
This item has been discontinued by the manufacturer, and it can no longer be ordered or purchased.

Discontinued

Manufacturer: Top Speed
Product # {{ productPartNumber }}
⚠
Prop 65 Hazardous Material Warning

Some products are manufactured using chemicals or materials known to the state of California to cause cancer and/or reproductive harm. Learn More.

Customer Questions

Question:

will anything need to be moved around if i already have megan downpipes, and they will also fit on the downpipes correct? - Chris

Answer:

Hey Chris, Megan's headers have "ok" fitment, some people have mentioned having to open up the bolt holes for example. But yes they will fit with Megan test pipes.

Question:

Will these fit my 2015 q50 3.7 sedan?? - Corey Otwell

Answer:

Yes, but you will need to relocate two studs on the heads, and if your car has DAS, you will need to reroute the wiring harnesses

Question:

I have g37x coupe 2010 this fit on my car - Aziz

Answer:

Hi Aziz, yes it does

Discontinued

⚠
Prop 65 Hazardous Material Warning

Some products are manufactured using chemicals or materials known to the state of California to cause cancer and/or reproductive harm. Learn More.

Description

This is the single most significant power modification for a non-turbo Z car (short of nitrous). Expect an increase in horsepower throughout the RPM range with the greatest gains at higher RPMs. The car remains driveable and noise level is not increased. Features Mandrel bends, T-304 stainless steel, Dyno tested design. Benefits: Optimum flow characteristics, long life and excellent heat dissipation, expect up to 12-16 rear wheel horsepower.

Compatibility

If you have questions about vehicle fitment, please contact us.

Customer Questions

Question:

will anything need to be moved around if i already have megan downpipes, and they will also fit on the downpipes correct? - Chris

Answer:

Hey Chris, Megan's headers have "ok" fitment, some people have mentioned having to open up the bolt holes for example. But yes they will fit with Megan test pipes.

Question:

Will these fit my 2015 q50 3.7 sedan?? - Corey Otwell

Answer:

Yes, but you will need to relocate two studs on the heads, and if your car has DAS, you will need to reroute the wiring harnesses

Question:

I have g37x coupe 2010 this fit on my car - Aziz

Answer:

Hi Aziz, yes it does

Copyright 2026 Concept Z Performance