What did you do to your Supra today?

[Tacoma714]

How is the switch??? I live in New Jersey so I have inspections but not for a few year's, is it worth it??? How much louder and more importantly how bad is the gas smell driving in the car and I'm guessing you really can't feel any difference in power??

No denying though the sound of catless is much better.

 

[Supra Jr.]

Made the switch from AA catted to MAD catless DP.

Do you recommend the switch??? How much louder, how bad is the gas smell, and I'm guessing only about 10hp gain??

 

[Supra Jr.]

No denying though the sound of catless is much better.

Looking more for gas smell and how loud?? Everyone says you lose the nice deep tone and get a tinny, raspy sound.

 

[decodeddiesel]

Looking more for gas smell and how loud?? Everyone says you lose the nice deep tone and get a tinny, raspy sound.

Ever been behind a muscle car on the road? That's how it's going to smell. Most people probably won't notice, and as the driver you'll likely never notice, but Mr. Law Man might and that's the problem.

I went catless on my STi years ago. The sound and power gain were noticable, but the first time I went to a National Park I felt like a complete asshole. I ended up selling the catless DP and buying a catted in the long run. YMMV and all that.

 

[bushido]

How is the switch??? I live in New Jersey so I have inspections but not for a few year's, is it worth it??? How much louder and more importantly how bad is the gas smell driving in the car and I'm guessing you really can't feel any difference in power??

i'll dissect your questions:

yes, power gain is obviously noticeable. per my tuner, 40whp/80wtq gain with a catless DP (talking about an E50 tune). so with AA DP, let's just throw a reasonable number, like 10whp/20wtq gain.

it's not necessarily louder, it growls more? there's more oomph? pops and burbles are insane, not my thing, but might be yours

SO THE SMELL PART: it's not that bad lol. for some reason in this car, the catless smell isn't as bad as i've experienced in other cars. it doesn't smell nearly as much or as bad. didn't take me an adjustment period, it was automatic. could also be because i expected it so i'm not disturbed

again, yes, you can 1000% feel difference in power. to repeat, i have the MAD Fat Boy 5" Catless DP. it's supposed to be deeper sounding than the 4.5", which it kinda is.. growls more deeper? i guess

also, you can hit "quote" on the bottom right of posts to do a single post with multiple quotes, or the mention (@) function to tag several people

Looking more for gas smell and how loud?? Everyone says you lose the nice deep tone and get a tinny, raspy sound.

correct, which is why i opted for 5" instead of 4.5". i'm satisfied. doesn't sound tinny, only on cold start, but if you're tuned, cold start is removed anyway

edit: updated wording for clarity. my fault

 

[Avarela99]

How is the switch??? I live in New Jersey so I have inspections but not for a few year's, is it worth it??? How much louder and more importantly how bad is the gas smell driving in the car and I'm guessing you really can't feel any difference in power??

I’m in NJ also i drove through inspection catless lol they only check for codes

 

[bushido]

The sound and power gain were noticable, but the first time I went to a National Park I felt like a complete asshole. I ended up selling the catless DP and buying a catted in the long run. YMMV and all that.

so considerate

 

[SooopraSD]

Do you recommend the switch??? How much louder, how bad is the gas smell, and I'm guessing only about 10hp gain??

With my HKS exhaust being one of the quieter ones paired with the catless, I would say it is a louder but not nearly as loud as other exhaust with catless DP. Honestly I haven’t even noticed too much of the smell. Going to get a re tune from Jesse today along with some water/meth so I’ll let you know how much the butt dyno reads.

 

[decodeddiesel]

With my HKS exhaust being one of the quieter ones paired with the catless, I would say it is a louder but not nearly as loud as other exhaust with catless DP. Honestly I haven’t even noticed too much of the smell. Going to get a re tune from Jesse today along with some water/meth so I’ll let you know how much the butt dyno reads.

Just so you're aware, methanol will make your exhaust smell awful and is more likely to draw the attention of law enforcement than just going catless.

 

[decodeddiesel]

so considerate

It was just such a beautiful place. I felt like I was ruining it for the other people around me with my loud smelly car.

 

[bushido]

It was just such a beautiful place. I felt like I was ruining it for the other people around me with my loud smelly car.

living in florida, i’m actually doing society a favor by poisoning the Florida Men around me

 

[SooopraSD]

Just so you're aware, methanol will make your exhaust smell awful and is more likely to draw the attention of law enforcement than just going catless.

We’ll see if I can tolerate it.

 

[Supra Jr.]

I have an AA catted downpipe now on MHD STAGE 2 on 93, if I go catless will it really pick up any power with just the same ots stage 2 tune???

 

[Rocksandblues]

I got no cat, no exhaust. I suck it up like Coke a cola on grid waiting for green

Be a man!

 

[FLtrackdays]

Looking more for gas smell and how loud?? Everyone says you lose the nice deep tone and get a tinny, raspy sound.

Depending on what you’re going to do with your Supra. Mine will ideally have more track miles than street miles. So she’s catless and I absolutely love it! My other 4 cars are all catted and it’s just not needed. I wouldn’t do it unless you’re really going to enjoy the shit out of your Supra (track the hell out of it like Rock).

i'll dissect your questions:

yes, power gain is obviously noticeable. per my tuner, 40whp/80wtq gain from a stock DP (talking about an E50 tune). so with AA DP, let's just throw a reasonable number, like 30whp/60wtq gain.

it's not necessarily louder, it growls more? there's more oomph? pops and burbles are insane, not my thing, but might be yours

SO THE SMELL PART: it's not that bad lol. for some reason in this car, the catless smell isn't as bad as i've experienced in other cars. it doesn't smell nearly as much or as bad. didn't take me an adjustment period, it was automatic. could also be because i expected it so i'm not disturbed

again, yes, you can 1000% feel difference in power. to repeat, i have the MAD Fat Boy 5" Catless DP. it's supposed to be deeper sounding than the 4.5", which it kinda is.. growls more deeper? i guess

also, you can hit "quote" on the bottom right of posts to do a single post with multiple quotes, or the mention (@) function to tag several people


correct, which is why i opted for 5" instead of 4.5". i'm satisfied. doesn't sound tinny, only on cold start, but if you're tuned, cold start is removed anyway

Well said I don’t smell a thing unless I sit in my garage with doors open, and focus on it. It’s a track car, need I say more. On the street, it’s not noticeable. The sound however is. Especially mated to an AWE track exhaust. Damn I love it ? But I’m also a Florida Man dying off faster than everyone else according to the View and other media experts.

A friend showed me his Active Autowerke catted downpipe & exhaust with sport mode button to turn it on and off. OMG, that was so bad ass ? sounded incredible and he has control with the click of a button.

Unlocked 2020 - absolutely beautiful car!!!!! It was one of his 1st mods and he’s a really smart guy. Knows a lot more than me about modern cars stuff. Claims it was easy to do as well.

So if I were you, in a State where it’s questionable to do, the AA dp & exhaust combo would be a great option.

(I can update this post if anyone want to know more about his car, I just have to find his forum name/tag)