Evo_Z33

iTrader: (6)

I am current doing some research on a few headers for the Z. So far i've been able to get alot of info on the Dc, stillen, and nismo headers. But there are not much info on the Top Speed headers, so if anyone owns or know anything about it stacking up against the other headers please share the vauable info.

Beeker

iTrader: (5)

First you should try doing a search. There is a lot of threads on headers. Since I'm bored I'll tell you what I've learned reading all the header threads.
Top speed headers are basically a cheap copy of DC's and Nismo. They are made overseas and have been known for quality control problems. I just installed a set of Strup headers. They are made in America, have a 2 year warranty and share the same design. All the headers that share that basic design will have very similar power gains. I didn't buy topspeeds because I didn't want to risk having a problem during the install or down the road. Headers are a pain in the *** and time consuming to install. I only wanted to do it once so I bought the Strups. You can find a good deal on a set here: https://my350z.com/forum/showthread.php?t=146062

Everyone on this forum will probably say to buy the Crawfords. They are said to give the best top end gains but they are very expensive and the most difficult to install.

davidv

iTrader: (2)

Did you read the 9 other Top Speed header posts?

undrgnd

iTrader: (2)

There are 9 other Top Speed header posts? If you took the time to search, why not post links to them and help a guy out?

Z BOY

iTrader: (41)

there's also tons of info over on motorng.

Z BOY

iTrader: (41)

give you a fish/teach you to fish

jmckuhen

iTrader: (30)

Geez, the search ****'s are becoming more and more prevelant on this site. I have the top speed headers on my 350. I like them, and they looked to be constructed very well to me. The welds looked very good, much better than my kenetix high flow cats. They fit well, but it is a difficult install (took me about 8 hours). They provide minimal gains, ie you notice a difference but not much of one. For the price I guess it is worth it, especially if you are not going FI and plan on doing all the NA mods you can. It seems that my car reacts better to mods now that I have a bunch of mods working in conjunction with each other. You should be able to find some for about $200, so just get em. There cheap and at least you can say "I got head...........ers". If you want the most power go with crawfords, but they are a pain to install and cost an arm and a leg.

Badmonkey

iTrader: (9)

I just had my Topspeed headers installed this past weekend. They were constructed very well, no quality issues, at all. My butt dyno can't really tell a difference, but my ears tell me that there is more air flowing. I can hear more rasp with my test pipes at higher rpms.

Gsedan35

iTrader: (10)

EVO Z33 did you see this independent Nismo header dyno?

https://my350z.com/forum/showthread....mo+dyno+header

Nismo 350z

DC heaers are better than top speed. But the best ones are Nismo. WAY better than crawford.

lowrider

iTrader: (3)

Mister - You are Dead Wrong. While the Nismos are good (as is the BRM copy). The best by far is the Crawford. It's a tuned Long Tube Header (26" each Tube) in the space of a short tube header. The others have tubes of around 18" long, and are not all equal length. I believe the Nismo and BRM are equal lentth, but much shorter than the Crawford.

Lou

jmckuhen

iTrader: (30)

I'll take some of what he's smokin.

Nismo doesnt even produce their own products (USDM parts), they just rebadge other people's stuff.

Beeker

iTrader: (5)

Like I said, everyone will say the Crawfords are the best. They may very well be. But I must say I've yet to see a before and after dyno with a set of Crawford headers being the only change.
Most people have only had one set of headers on their car. Headers are too much of a pain to install so most people only do it once. I haven't seen any threads saying I switched from header X to header Y and noticed a big difference.
Strup, DC, Top Speed, Nismo and Alphawerks are all very similar so they should all give similar gains. Which from what I've experienced with the Strups is a nice boost in the mid range and a small boost up top. I also don't feel like I've lost any power anywhere. It pulls harder a couple hundred rpms ealier. Before I used to feel the motor starting to pull around 3000 rpms. Now it starts around 2800 rpms and pulls harder.
The Crawfords may give a bigger gain up top because they are equal length. I will never know because I'm not spending over $1,000.00 for them and I don't want to install headers again. I wanted an increase in the mid range because that is where you need it for street driving. I got exactly what I wanted. I will post my before and after dyno results as soon as I get it done.