I Changed The Stock Headers For Aftermarket - Is There Any Difference?

1990 Ford Mustang Fox body 5.0 LX convertible with stock exhaust headers gets a new set of ‪@bbkperformance‬ 1 5/8" unequal length titanium ceramic coated exhaust headers. We find out if the aftermarket exhaust headers are any louder than the Ford OEM exhaust headers on this small block Windsor 302.
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Thanks for Watching!
#foxbody #foxbodymustang #mustang #kaslcustoms #howto #diy #diyprojects #ford #fordmustang #exhaust #exhaustsound #beforeandafter

[@VictorSanchez-kp9nt]

Name brand doesn't always mean quality. I'm glad I put on the lmr econo stainless steel headers and just at a glimps mine where made on a Monday.

[@KASLCustoms]

Hahaha Monday parts are always the best!

[@autofox5.067]

My LMR econo headers arrive Wednesday!

[@eduardosantana4814]

Great video Gary!! Crazy how one of them didnt come threaded!! I changed mine on my 94 about 3 months ago they stock headers as well. I had a really bad header leak and when I removed the passenger side header one of thw header pipes had a huge crack hanging on to dear life!! Lol always a great upgrade 👌

[@KASLCustoms]

Oh wow that’s crazy! Thanks bud - hope you’re well!

[@nunya2814]

Leave it to bbk to drop the ball lol, but I usually prefer to use bolts instead of studs, makes installation and disassembly easier imo. I actually took the time to clean up the welds on my set of headers last summer, gave it a more crisp exhaust note , also seemed to rev better, definitely glad I did it.

[@KASLCustoms]

Very nice bud!

[@joeknowz4898]

BBK ceramic on mne..I was worried ...but the OEM blots on my 89 5.0 came out easy.. BBK H-pipe and no cats.. what a sound upgrade.. Flow Master American Thunder SS the rest of the way...Minus all the smog items...

[@jeffcarroll6346]

Great video as usual Gary. Nice job on the headers. Great videos

[@KASLCustoms]

Thx buddy!!!

[@ogsuperflygarage]

Great video Brother! The sound comparison was cool. The BBK's are louder. However I must say that I am shocked about the BBK headers and what I would consider poor quality! Hopefully you were able to smooth things out with the wife when you got home from a late night at the shop!😰💯👊🏾

[@KASLCustoms]

Thx buddy! Yes I agree, it definitely doesn’t look good for them. Many people have shared similar experiences in the comments… Hahaha momma forgave me 🌹🌹🌹

[@Mustang-Foxbody]

Really nice lx vert notch I always liked the luggage rack more then the little wing adds way more nostalgia to the car plus they look more boxy if that’s a word lol…

[@KASLCustoms]

Hahahah yessir!

[@vrm86gt]

I've definitely ground down the excess welding inside the ports before!

[@KASLCustoms]

It’s almost a must!

[@1990GearHead]

Only gaskets we use at the shop i work at boss swears by them and I can confirm they work.

[@KASLCustoms]

Yessir! Anything else is 💩 in my experience 👊👊

[@RoachLx]

Wish I would’ve seen this video a few months ago before I bought my ceramic unequal shorties, Makes me want to sell them and get a pair of equal length instead

[@hotrodray6802]

No practical difference in power below 5500 rpm. You're not driving a dyno.

[@KASLCustoms]

The unequal length are a lot easier to instal that’s for sure 👍

[@williamhicks7592]

From what I heard it might be the EGR sensor and valve but it ain’t throwing the check engine light ether

[@david37203]

Good stuff. Thank you

[@KASLCustoms]

No worries 👊

[@cvjfine]

I went with the BBK long tube headers and x pipe with flow fx mufflers on my 91 lx. It took forever to get the stuff from BBK, but it was the height of th pandemic when I was trying to order stuff and do my build. There were no quality issues, though. The combination gives my car a subtle but aggressive sound. I really like the flowmaster flow fx mufflers. They don't drone your brain out at highway speeds, but sound great when I get on it. Also, because they are not the typical chambered flowmasters, they do not have that fart in a tin can sound.

[@hotrodray6802]

Fart in tin can 👍 My experience is that they cost a BUNCH of power. Our shop replaces FM for customers, some have less than 500 miles on them. Most everybody hates them. We just toss em. 🙄😎

[@cvjfine]

@@hotrodray6802 I remember the first traditional flomasters I bought years ago, they were fun for about 5 minutes, that is when the migraine set in from the constant drone. I have to give credit to Flowmaster now for getting away from the chambered design with the FX series, I love them.

[@KASLCustoms]

That’s good to hear bud. Thanks for sharing 🙏

[@95Sn95]

I always spend a bit more for me. Gasket copper header gaskets they just don't leak and can be reused. I was sold when I had a SBC with headman long tubes and I had a broke off bolt and they didn't leak that's unheard of. It even had a small exhaust leak until it got warm it sealed up and never leaked again and I reused them several times with no leaks. Also the air flow guru David vizard said equal length headers are not actually better because each cylinder has a different location and distance so they want a certain lengths, obviously each one needs to be tuned vs random lengths for fitment but most don't have the equipment or know how to tune primary's. Personally I think the best option for exhaust for fitment custom fit and expense is to just buy a builders kit and build your own there under $100 and you could build a high dollar exhaust for pennies on the dollar... It's just most don't even consider it but with some basic tools like grinder with cut off wheel and a welder (obviously a chop saw is waaaay more ideal) and fabrication ability it's easily doable it's just more time consuming but end result is well worth the time and effort. And there's some serious self gratification and respect from others that would come from building a nice compleat custom exhaust because Anyone can spend $500 and up for a bolt on exhaust and it is what it is.

[@mylesa5438]

BBKs quality has really dropped off, I ordered a BBK cold air intake from LMR that came pre rusted with the powder coat peeling off, LMR gave me a refund and checked their inventory to find all of their BBK intakes rusted 🙃 (Definitely will not buy anything BBK in the future)

[@KASLCustoms]

Oh wow that’s awful! A lot of people have been saying similar things on here….

[@1fastford795]

I took the passenger o2 sensor off when I did this the other day made it a lot easier

[@KASLCustoms]

Yeah, if you can get them off, it definitely makes a difference 👍

[@hrodriguez112]

sounds great!

[@KASLCustoms]

Thx buddy!

[@anthonygrebner]

I spent hours cleaning up the ports on a set of Mac longtubes. Seems you gotta spend bucks these days for anything decent. That said, I bought a set of stainless longtubes for my coyote swapped f100...copies of the S197 BBKs....of off Chinabay for $150 new and they are absolute beauties.... seriously!

[@KASLCustoms]

Oh wow! You know we’re heading down hill when the off shore product quality is better then North American… all things being equal, I’d love to live in a world we’re no matter where or who you bought a product from it is always top quality! Imagine that…? 🤯🤯🤯

[@billyhernandez7540]

Are the stock headers runners are 1 5/8s

[@stephenroberts7816]

Cool stuff. Well except for BBK's screw up. I have never noticed a change is sound with headers.

[@KASLCustoms]

Thx buddy!

[@jimmylanders2693]

you should have downloaded a free decibel reader app for the loudness test....i have single chamber flowmaster mufflers on my 91. its insanely deep loud (car alarms go off in parking lots). my engine has been modified more than that one though. no cats.

[@morpheousrx5590]

Love the videos brotha. Anytime you’re on Long Island in New York…Hit me up…I’d love to share my collection with ya. BTW….BBK stuff is no good anymore…hasn’t been for a while.

[@KASLCustoms]

Thx so much buddy! I most definitely will. I might be out in that area this July 👍

[@floydmarseeii4007]

I tried to buy a set of long tube BBk 351 swap headers. They took my money, but 6 months later they finally gave my money back, because they couldn’t provide the headers I ordered. So now I hunt parts elsewhere.

[@KASLCustoms]

Oh wow that’s crazy!

[@2727579]

BBK are great also MAC

[@martytdd1606]

Danny Divito's car in twins 👌 😂

[@SKindianSpringfield]

Question? When doing all of these exhaust mods and deleting cats and so on. Are there any CEL issues that arise?

[@KASLCustoms]

No sir

[@SKindianSpringfield]

beauty! keep the vids coming@@KASLCustoms

[@fish_R_stinky69]

It needs straight pipes.

[@mrbighands]

! if it was me I would have had full-length 1- 5/8th headers installed

[@KASLCustoms]

This car is bone stock, no need for long tubes

[@mikemarks6562]

I very little not much but there is a mild difference but does it add any power ? Has to right

[@KASLCustoms]

yes

[@mikemarks6562]

@@KASLCustoms thanks for the reply I wanna do the shortys but scared the bolts might break I just got a 89 but I’m going to do a straight pipe today leave the original cats alone

[@Dave711701]

Those mufflers might have been a brand called walker dynomax.

[@KASLCustoms]

I think you’re right 👍

[@williamhicks7592]

Hey how’s ur day going? I got a 1990 mustang gt 5.0 and I figured I would let u know I got it fixed it was just the a arms were shot but I got one more issue that keeps me from driving and enjoying the car. I put brand new throttle cable in and it works great it don’t stick or anything until u turn the car on then the car idles fine for the most part but it stalls when stopping and it starts stick the throttle open at like 2 grand but u go a press the throttle and let of to lower the rpms it revs to like 5k and won’t come down till u really slam the throttle and let of real fast would u might know what it is And it also has brand new throttle body and when u take the throttle cable off it don’t have now sticking ether

[@KASLCustoms]

Hey bud! Glad you got the a arm situation figured out! It sounds like the cable is sticking somewhere, or maybe the pedal assembly needs to be lubricated 🤷‍♂️

[@williamhicks7592]

@@KASLCustoms yeah ig but it don’t stick when car is shut off but I’ll try that and that bud for ur time again

[@KASLCustoms]

Yessir!

[@konvertiblekon7093]

Longtubes or soup thru a tube

[@mistersecret88]

But did they make anymore more power?

[@KASLCustoms]

I’m not sure as I do not have a Dyno but I assume that they helped make a slight amount more power

[@JJj-xratedgt]

Happy Wife HAPPY LIFE! 2AM-OUCH!

[@hotrodray6802]

🔔😎 I'm curious why the new headers. If the stock ones are so bad and yet the bad welds on the new ones are not gasket matched, inside the collectors are often furbard... If you're not going to port the headers .... why waste the money? I recently bought a set from a BIG name company and it's gonna take 2 hours to port the mess. Outside is beautiful. Inside's a mess. Yesterday I saw a new mid length set for a SBC and inside they are the worst I've ever seen. But pretty outside. SMH 🤔 I wish that I could post the pictures here. BTW, Have you ever run headers on a flow bench, before and after? Bigdogs Porting does and has a video per se. 5.0 headers but I don't remember which brand. Added something like 30% to the flow. 👍😎 And how many folks run headers and squashed bend pipes? LOL

[@KASLCustoms]

It’s funny you mention the “bent pipe.” I’ve not seen flow numbers but I have seen Dyno results before/after of a bent pipe and the Dyno results did not change

[@hotrodray6802]

@@KASLCustoms Interesting. David Freiberger did a show on smashing header tubes while on the dyno. Almost zero difference. I went from turndowns to tailpipes on my 90 and instantly noticed @ 15 tq/HP (guessing) worse. Significant seat of pants. 🤔🤔🤔😎

[@hotrodray6802]

@@KASLCustoms I sent you the pics to outlook 👍 YeeeeeHaaaaaw!!!

[@lr7993]

😎

[@KASLCustoms]

👊👊👊

[@zd302gt]

BBK quality control is horrible.

[@nunya2814]

Absolutely, I ditched their fpr for an aeromotive after the rebuild kit for it failed right out of the box.

[@KASLCustoms]

It’s definitely slipping…

[@streetstomper]

hey you wanna through some headers in mine lol

[@KASLCustoms]

Sure thing bud!

[@J45yu456]

Shortys bbk

[@KASLCustoms]

Yup that’s what they are 👍

[@hotrodray6802]

🔔😎 Reviewing your videos and studying tuning... Tuner Leech Motorsports YT has a simple cure for your green car's cam surge. Matt also has answers for your red car upgrades, (similar to my uogrades).

[@KASLCustoms]

Thx buddy

[@JJj-xratedgt]

Ye$ & thx yu ...say no to BBK!

[@mynameisfrank6519]

Bbk is on my never to buy again list. Absolute crap company.

[@nunya2814]

Only thing I ever got from them that was worth anything were their rear gripp upper and lower control arms, been going on em for about 2 yrs now, those with the nittos I'm running, the cars got pretty decent traction.

[@KASLCustoms]

This seems to be a common thread with folks…

[@danmallery9142]

Wow, BBK. Do better.

[@KASLCustoms]

I know…