How To Install an Aftermarket Header or Exhaust Manifold | Mazda MX5 Miata: 1.6L or 1.8L

[@CashedOutCars]

Here's how to install an aftermarket header on your Miata! What kinds of exhaust setups do you have on your cars?

[@lukevancraeynest1626]

A rusty one 😁

[@CashedOutCars]

😂That’s certainly what this started with!

[@DriveItRyan]

Just installed a racing beat header on mine too! Just waiting on the racing beat power pulse race catback to come in the mail and I should be good to go. Nice video dude 👍

[@CashedOutCars]

DriveItRyan awesome, enjoy it! I liked it before the turbo build started. Definitely a bit more punch on the top end and it looks great. Nice work on the slip angle videos!

[@possumfarms]

Thanks for posting this! My son and I are restoring a little Miata that he found on the Internet - and will soon be doing mods. (And posting our progress on KZbin of course! LOL) We are looking at doing a header install and complete cat-back exhaust but are at a loss as to what to put behind the cat that doesn't "drone" down the road... I want LOUD, he wants no drone... Eventually we will come up with a compromise! Subbed after checking out several of your other videos - Good job and keep posting!

[@CashedOutCars]

I’m glad you enjoyed it! Before you do that, remember that a turbo is basically free muffler ;) in all seriousness if you plan on keeping the car NA there’s lots of good exhaust clips on KZbin! I agree with your son, drone sucks. Good luck!

[@possumfarms]

@@CashedOutCars I have owned a few race cars in my life and I have become addicted to HEARING the engine! I can tell exactly what's going on if I can hear it... So loud is good - to a point... Believe me, the sound of a 427 cid side oiler in a Shelby Cobra with side pipes 1 ft. away from your butt gets really old.... REALLY quick... On a long drive to town... On the track, it comes in handy - on the freeway it will drive you bat-shit crazy... LOL So I understand about the "drone".... The "sweet spot" is to hear the engine when it is accelerating or loaded down while downshifting. But have it be relatively quiet at cruising speeds at a constant steady RPM. THAT is what we want to find in a good cat-back for his Miata. The Borla kit (which I thought was going to be outstanding) sounds horrible... Lots of people have complained. I heard it on video and wasn't impressed. He won't let me drag out the plasma cutter and the welder and fab up something out of my pile of old race car parts! It would be FREE! And I know I have some 3 inch Summit Racing bullet racing mufflers for flat track roundy-round cars stashed here somewhere... I like FREE! And... Ya know... it IS a racing muffler - it must be good for another 10hp right!?!

[@CashedOutCars]

I like the way you think with using the old race car parts, same kinda thing I like to do! I just finished a full exhaust on my freshly turbo’d car with $25 worth of 2.5” pipe and an old aftermarket muffler.. sounds pretty good, and you can’t beat the price! That video will be live this weekend so stay tuned. Have fun with your project!

[@peteryang2067]

YESSSSS 1.6 LESSGOOO!! Lol just bought one the other day

[@garry2280]

Thank you. your video was very helpful on which way the header gasket goes on!

[@CashedOutCars]

You're welcome!

[@miker50031]

I’m doing the same job, did you remove the header bracket? Did it get in the way of the new exhaust? Great video though, keep up the good work

[@SuperBailey]

how did you get the little bracket holding the old manifold to the transmission area?

[@colinleder5683]

For anyone reading now, I don't think you need it on the Racing Beat from what I read

[@danielskrskr]

I used a u joint socket and extension to break it loose, then used ratcheting wrench

[@TOMCcaptivatetom]

Very nice job on this video.

[@CashedOutCars]

Thanks my friend!

[@gavinrichman8610]

Haha my Raceland 4-2-1 just came in the mail yesterday and I’m doing a full exhaust as well including a hollow cat and catback

[@CashedOutCars]

Nice! Just the header didn’t make it too much louder so the full exhaust will be really nice

[@cre8tivegarage157]

Thanks for bringing us yet another vibe 🥂 enjoyed

[@kyrawilkes4793]

i know this video was posted a while ago but how did you remove the bracket bolt connected to the transmission

[@PALTV-hn9jt]

Hey there brother thank you for the awesome video, it is super helpful. I recently did a full exhaust on my 99 NB. I chose the ISR racing circuit spec 2 exhaust. Love the sound it has a deep growl and is loud. Quick question though I'm looking to do the headers next however do you have to get it tuned after you install the headers? Haven't been able to find a miata tuner near me yet.

[@CashedOutCars]

You’re very welcome! You don’t HAVE to get it tuned, I’ve been driving mine on a stock ECU since I installed mine. With that said, a tune will allow you to get the most out of upgrades, but it’s not absolutely necessary and most people don’t tune

[@PALTV-hn9jt]

CashedOutCars awesome! Thank you for the diligent response brother. Looking forward to seeing what it all is like.

[@TheMichul]

Great video!

[@CashedOutCars]

Thanks! Glad you enjoyed it!

[@82raptor]

If it was my money I would keep it stock as my 01 NB 1.8 has a 4 to 1 from the factory. With mild bolt on parts the factory exhaust system is pretty good with an aftermarket muffler. If you want to go forced induction then you would want to re think the exhaust but, my car is set up for cornering not drag racing. I would like more power as everyone would but for the same price I could get a N20 kit and make 50 more hp.

[@wpfate1192]

“All the rust and crap” 😂

[@CashedOutCars]

There sure was a lot of it😂

[@guitariste47]

I did'nt understand how your dad held the studs without damaging the threads.

[@codwizard7526]

Hey cashed, nice to meet you🤣

[@CashedOutCars]

Hey hey!

[@codwizard7526]

@@CashedOutCars post more miata videos. There great

[@CashedOutCars]

Thanks man! I’m working on editing another one now, stay tuned, it’ll be out next week!

[@WorstPaperCut]

5:45 at this part. The clip near the joint of the manifold and the pipe going to the cat. That clip that bolts to the transmission. You didnt show us how you got that out. My NB process is like yours but that clip is killing me right now.

[@CashedOutCars]

Good catch, I didn't show it in the video because it wasn't doing anything on my car. Maybe someone previously modified it. Good luck!

[@STOUTZS]

Was your 02 sensor wire long enough after screwing it into the bunge???

[@CashedOutCars]

It was, but just barely. I had to unclip it from it’s holder up above to get a bit of extra length out of the wire

[@STOUTZS]

CashedOutCars awesome! Thanks for the tip, I think im gonna do that too

[@Haiasiriku]

HOLY SHIT ITS CASH!

[@jefflawley7572]

Thanks!

[@CashedOutCars]

You bet! I appreciate your support. Enjoy your Miata!

[@Christian-jf4jp]

i ripped off my heat shield because it was raddling should I put a new one on or just leave it

[@CashedOutCars]

They do a good job of lowering engine bay temps and shielding your brakes components from heat. With that said I didn't run one on this aftermarket header and it was okay. The decision is up to you!

[@artxofxwar]

I’m guessing the o2 fit? I bought circuitwerks 421 headers and where the o2 goes is lower down than the raceland headers. Did you have to do anything to get the o2 to work/fit?

[@jesselarios2849]

hey i’m thinking of buying a circuit werks header for my 1.6 how are they

[@JAPerror]

any update i was considering the same header

[@noremac9742]

wheres the EGR header connector thingy. racing beats website shows pics with it but you dont have one? an i stupid or something im going crazy please someone help me

[@NickVillecco]

1.6 Miata 1990-1993 is different than 1.8 miata 1994-1997 (no EGR on the 1.6)

[@djisch]

so i can fit a 1.8 Header on an 1.6? is it the same?

[@CashedOutCars]

It’s won’t work, the cylinder spacing and bolt pattern is different

[@djisch]

@@CashedOutCars yea right i forgot. the engine is bigger makes sense.

[@MarcusLbrofist]

Is this carb legal in ca

[@CashedOutCars]

I’m not sure, that’s something you can probably look up on racing beat’s website. Good luck!

[@neatt3815]

The bolts that are on the cat are such a pain 😒

[@CashedOutCars]

They do tend to freeze up.. use lots of oil on them before hand and really let them soak

[@soccerman0021981]

I put on a new cat-back exhaust yesterday and snapped both studs on the cat in half. Had to drill them out with cobalt bits.