Are Long Tubes worth it with whipple?

[OrangCrush]

I thinking about adding long tube headers but want to know if its worth it. Any issues after? With cats are they wake the dead loud?

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[beefcake]

headers will always wake the car up alot.

headers will always help get the gasses out quicker.

 

[Gremlinsteve]

I'm going mak cat deletes

Much cheaper and makes similar power I bet

 

[Boduke0220]

I'm going mak cat deletes

Much cheaper and makes similar power I bet

Same here

 

[Phoenix]

cat deletes. LT will give you about 15hp increase but you can get the same from pulley down.

 

[Getdownonit]

I'm going mak cat deletes

Much cheaper and makes similar power I bet

I have LT headers and cat deletes which is even better.

 

[Phoenix]

I have LT headers and cat deletes which is even better.

any empirical data to back this claim up?

 

[Getdownonit]

any empirical data to back this claim up?

No. Just make sense to me if you allow the engine to breath better it becomes more efficient. Also at the power levels I'm at cats can be an issue due to heat.

 

[Phoenix]

No. Just make sense to me if you allow the engine to breath better it becomes more efficient. Also at the power levels I'm at cats can be an issue due to heat.

and yet my car made 20 more whp than yours and ive been on stock cats and manifolds for 14k miles? :shrug:

 

[Getdownonit]

and yet my car made 20 more whp than yours and ive been on stock cats and manifolds for 14k miles? :shrug:

Hard to tell because of different tunes. Is that on a Mustang dyno. Anyways it works for me.

 

[TooSoonJunior]

and yet my car made 20 more whp than yours and ive been on stock cats and manifolds for 14k miles? :shrug:

Yet you went 2mph slower through the 1/4?

Tit for tat stuff, stock cats will melt given a rich enough, hot enough mix. Period. Been proven. I have a rattle can ARH "high flow" cat mid pipe sitting on my bench. Happened around 750whp.

Removing cats allows you push the tune harder without fear by your tuner you'll melt something. They are restrictive to flow, but I would say equally as restrictive as the stock exhaust manifolds are once you start boosting and raising your rev limiter. You need both.

 

[Phoenix]

Hard to tell because of different tunes. Is that on a Mustang dyno. Anyways it works for me.

yup

[ame]

 

[Phoenix]

Yet you went 2mph slower through the 1/4?

Tit for tat stuff, stock cats will melt given a rich enough, hot enough mix. Period. Been proven. I have a rattle can ARH "high flow" cat mid pipe sitting on my bench. Happened around 750whp.

Removing cats allows you push the tune harder without fear by your tuner you'll melt something. They are restrictive to flow, but I would say equally as restrictive as the stock exhaust manifolds are once you start boosting and raising your rev limiter. You need both.

and yet at 650whp on a mustang dyno at 16 degrees ive had no problems.

lund had no fear id melt something. neither has boostworks.

yep i went 2mph slower, headwind/shitty 60 foot. im still on factory converter launching at 1500rpm. first and only pass.

 

[Getdownonit]

and yet at 650whp on a mustang dyno at 16 degrees ive had no problems.

lund had no fear id melt something. neither has boostworks.

yep i went 2mph slower, headwind/shitty 60 foot. im still on factory converter launching at 1500rpm. first and only pass.

Hay man, it's all cool!

 

[Phoenix]

Hay man, it's all cool!

agreed. longtubes without cats and a loud exhaust is gonna be loud.

is it worth it? most likley you wont notice the difference. someone who has driven many of these cars back to back probably would, but most of us noobs nope.

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