any one with Borla Headers and or Crawford Cats please post your your comments

 

got borla headers. dont feel anything different... which i saved for something else.

 

I installed both the Plenum and the cats. The biggest bang for the buck is by far the Plenum. The cats give more exhaust noise and may work well inconjunction with the headers but not much performance improvement by themselves. I have also removed the resenator and installed the Flowmaster muffler. The comments I receive about the sound are endless. People love it.

 

huh?

 

Can you do everything you can to post a sound clip?

 

Imagine what you have now... but WAY raspier at cold. Once warmed up a deeper gurgle.

I'm running stock mani's, hi-flo cats, no reson, stock exhaust.

People are SHOCKED how loud it is at full throttle.

 

But I don't wanna imagine!

 

Installing the headers and cats on friday, after that i'm going to be saving for the plenum.
thanks for the feed back

 

I now have the Crawford plenum, high flow cats, borla exhaust and Crawford headers and WOW what a difference!!! Like most mods... if you install just one the gain is small. If you make several mods all in the same area like air intake and exhaust the performance gains are 5 fold. I'm testing now on my G-Tech but I believe the 4 mods I have made (Crawford plenum, Crawford headers, high flow cats, and borla exhaust) could be as high as 40ish more HP. I will know the exact numbers soon. I do know the butt factor has changed dramically!!!!

Doug Piner
ITS 240Z since 1995
EP 240Z since 2000
350Z VIN 596
...maybe a 350Z in GT-2 soon...

 

When did you get the Crawford Headers? I have been on the list for a while and was told maybe by the end of next week. I have debated between the headers and cats and think the best is definately headers, HF cats, dual exhaust. If I was going to not install one option though I think I would leave the stock cats in and do the headers + dual exhaust. Any other thoughts on that?

 

Those were the same exact mods I was gonna do. Can't wait to hear more about your numbers.

 

ep00 was one of the original people on the list...

Headers are moving along very well now, several orders have been taken... and your name IS on the list zzzya I do believe!

Also note... best gains will be made with high-flow cats. At least if you want to wait on those, they aren't THAT hard to install.

We have been in ATL all weekend dyno tuning.

Many surprises to be announced!

 

Get those numbers posted!!!! It is boring up here in Iowa, especially when the weather is crappy. I may just have to drive down there and get the headers installed My wife even said I should do it. Just need to figure out a time to visit you crazy "volunteers".

 

Yeah, we'll just say... we "goofed" on the local dyno. I'll let Doug explain... Basically, when you dyno check and double check everything before running!

That is what ep00 did, he and his wife came down and made a weekend of it! We all went to dinner Friday night, etc!

 

Ouch, mapquest says about 11hrs to your shop from my house. Would be a fun trip if the weather can hold out.

 

Which Dyno are you using in Atlanta?

 

Balanced Performance

Doug and the owners of both Balanced and Sunbelt have been friends for a LONG time.

Stellar shops they have down there!

 

I have the Borla headers, Crawford Cats, and Borla TD exhaust (along with some other things! )

It's a very sweet combo. The sound is unbelievable! Everyone who has opportunity to hear me go screaming by said it sounds like a race car at WOT.

At idle and low RPM it is pretty quiet... a bit of a rumble, but from 3K on up it is just pipe music and from 4500rpm on up it is ungodly! It sounds like the car is just roaring.

I'm supposed to be heading to Charlotte Motor Speedway for some laps this week. hopefully, I can get a camcorder out there for some video.

Oh... and at this point, I have to say Crawford Cats vs Crawford Plenum... both are equal on bang for the buck. The plenum definitely helps at high RPM, but I noticed an immediate improvement when the Crawford Cats were installed. Noticeably more powerful down low and much freer reving.

 

mcduck, were the Crawford cats installed before or after the headers, plenum, exhaust to give you that immediate improvement?

 

the crawford cats were put on last and by themself about a week after other mods were done. So I was able to compare between all the the mods (minus crawford cats) and all the mods including crawford cats.

I definitely could tell a difference down low between cams/exhaust/headers/plenum/pulleys and cams/exhaust/headers/plenum/pulleys/cats