Frontpipe catless/hfc and emissions, sound level...

[steveholt]

honestly i have no intention of tuning the car for a while because i want to be 100% familiar and a good harmony with the understanding of my car's limits before i do so

[steveholt]

Originally Posted by Bobblehead

A catless front pipe will make your exhaust sound a lot more raspy.

You won't get any sort of boxer rumble without an UEL header. Thats that. This car has an equal length header.

High flow cats are not nearly as restrictive as most people think. You'll get 1-2 more horsepower, TOPS out of a catless pipe. Its not worth the rasp.

this is something to think about, hmmm.

so the benefits comparing a catless to a high flow is marginal at best?

my berk dual tip muffler delete is pretty loud but i want a little more.

the factory front pipe has a cat and that weird rectangle square resonator, so with either the catless front pipe or a high flow cat both typically not having an extra resonator like the stock front pipe should allow better flow and better sound? catless being louder than hfc?

[2016 Camaro SS]

Originally Posted by Muaddib

Man i dunno how you guys run with catless header. I am running Perrin 2.5 res CBE and the Perrin catted front pipe. I am pretty much going deaf because of it.

Mine is pretty quiet with a catless JDL UEL, JDL OP, JDL catted FP, and a Perrin 2.5". You sure you don't have a leak? My N1 was a ton louder.

[2016 Camaro SS]

Originally Posted by weederr33

Woah, woah, woah, you're saying I'd have to flash my car back to stock to pass emissions, even if I have both cats still?!

Only if it throws a code. Catted headers aftermarket can change the flow pattern that the sensors see, especially highway cruising. That can cause a CEL. If catless on the header and your tune deletes the rear O2, then yes, you have to flash back to stock. It's only once a year and takes less than 5 min to flash.

[2016 Camaro SS]

Originally Posted by steveholt

this is something to think about, hmmm.

so the benefits comparing a catless to a high flow is marginal at best?

my berk dual tip muffler delete is pretty loud but i want a little more.

the factory front pipe has a cat and that weird rectangle square resonator, so with either the catless front pipe or a high flow cat both typically not having an extra resonator like the stock front pipe should allow better flow and better sound? catless being louder than hfc?

Stick with a catted or resonated front pipe or you will have a raspy fart can with the Berk muffler delete.

[Bobblehead]

What he said^

Catless versus HFC pipe is marginal at best these days.

[steveholt]

thanks for the input everyone, ive decided to go with berk high flow catted front pipe because it is very affordable.

any difference in hfc front pipes when comparing it to other manufacturers? berks pretty solid?