Invidia N1 catback or Invidia Q300 catback??

[timmydatooth]

I was looking at more exhausts with the burnt tips. Does anyone have the agency power catback on there car? Aound isnt bad on it either.

[yelsew]

Originally Posted by timmydatooth

Not really sure what the difference is between cat and catless or res or non res. I know the catted front pipe costs more tho. Sorry im a noob to this

Its okay, catted front pipes have a catalytic converter, these are somewhat quieter than catless front pipes, the resonated pipe has a resonator which should reduce rasp and make it a bit quieter too.

[zc06_kisstherain]

if you're not planning to get header then N1 should be fine. otherwise Q300 or Perrin or other quieter exhaust set up.

[timmydatooth]

Originally Posted by zc06_kisstherain

if you're not planning to get header then N1 should be fine. otherwise Q300 or Perrin or other quieter exhaust set up.

So the N1 on a stock frs (besides a CAI) wont be too loud for daily driving/cruising? And im not trying to leave the silencers on all the time. Lol a lot of people say its good for the track but the drone can get annoying for DD

[timmydatooth]

Ok so i think im gonna go ahead and pull the trigger on the q300! Im also going to get the invidia front pipe but whats better? Catted or non? Resonated or non? Whatever adds more sound and power is what im looking for.

[kch]

Originally Posted by timmydatooth

Ok so i think im gonna go ahead and pull the trigger on the q300! Im also going to get the invidia front pipe but whats better? Catted or non? Resonated or non? Whatever adds more sound and power is what im looking for.

Resonators reduce the high-frequency "raspy" sound a lot of people don't like. If you keep the stock header, rasp won't be a huge issue, but a resonator wouldn't be a bad thing. Resonators have 0% impact on performance, so it's a question of personal preference.

I'm not sure what the law is in Florida re emissions inspections. Technically, removing a functional, factory catalytic converter is against federal law, but many people do it anyways (myself included). By default, these cars have two cats: one in the header, one in the front pipe. Cats are purely there to reduce emission of NOx and CO. Cats have a mild effect on performance because, by their very nature, they cause an exhaust restriction. Similarly, they reduce the volume (and maybe raspiness?) of your exhaust as well.

If you're staying naturally aspirated, getting a catless front pipe won't give you much of a performance gain (but it'll be something, maybe). Catless front pipes are less expensive, though. It's ultimately your choice. The popular route is to get a catless header with a catted front pipe. That way you have lower emissions, less restriction, and will probably pass a sniffer test.

Note that if you decide to go completely catless, you will most certainly fail an emissions sniffer test. Your exhaust will also smell like gas fumes.

[timmydatooth]

So would it be better for me to just skip on the front pipe and just get the q300 catback by itself? Does the stock pipe have a cat or a resonator?

[kch]

Originally Posted by timmydatooth

So would it be better for me to just skip on the front pipe and just get the q300 catback by itself? Does the stock pipe have a cat or a resonator?

Stock has a cat and a small (helmholtz?) resonator. In my opinion, swapping out the front pipe isn't particularly cost effective unless you're doing full exhaust, including header. But that's just me.

Edit: install the Q300 and see how you like it. If you decide you want a little more volume, I think a FP with a high-flow cat would make it a bit louder. But that's just speculation on my part.

[ramiram1984]

Originally Posted by kch

Resonators reduce the high-frequency "raspy" sound a lot of people don't like. If you keep the stock header, rasp won't be a huge issue, but a resonator wouldn't be a bad thing. Resonators have 0% impact on performance, so it's a question of personal preference.

I'm not sure what the law is in Florida re emissions inspections. Technically, removing a functional, factory catalytic converter is against federal law, but many people do it anyways (myself included). By default, these cars have two cats: one in the header, one in the front pipe. Cats are purely there to reduce emission of NOx and CO. Cats have a mild effect on performance because, by their very nature, they cause an exhaust restriction. Similarly, they reduce the volume (and maybe raspiness?) of your exhaust as well.

If you're staying naturally aspirated, getting a catless front pipe won't give you much of a performance gain (but it'll be something, maybe). Catless front pipes are less expensive, though. It's ultimately your choice. The popular route is to get a catless header with a catted front pipe. That way you have lower emissions, less restriction, and will probably pass a sniffer test.

Note that if you decide to go completely catless, you will most certainly fail an emissions sniffer test. Your exhaust will also smell like gas fumes.

Resonators add more weight. More weight to or already slow cars.

[timmydatooth]

Yeah im gonna go the catless front pipe since florida doesn't have emission laws anymore. Last thing i need is more weight.

[JoeBoxer]

Does anybody have a pair of the N1 silencers they aren't using? My exhaust didn't come with them and would like to try and see how it sounds.

[kch]

Originally Posted by ramiram1984

Resonators add more weight. More weight to our already slow cars.

I seriously doubt OP is building a racecar where a 5lb(?) resonator would matter.

[timmydatooth]

Have you guys every had any problems or fitment issues using a different brand front pipe with an invidia cat back? I was thinking of going a cheaper route on the front pipe like tanabe or jl2. Also doesnt the q300 catback come woth with the midpipe already that has a resonator on it?

[JG]

I still have my N1's on. Also with Invidia straight pipe, front pipe, overpipe, and openflash UEL header. It's loud when I want to be loud but when i drive casually it's not bad at all. Before i installed my header it wasn't bad at all, drone's a little on the hwy but you wont notice it after a week or two.