Axle back or Cat back exhaust?
Thread Starter
Driver
Joined: Jul 2009
Posts: 135
Likes: 1
From: CA
Axle back or Cat back exhaust?
I can't decide which style exhaust to get? I'm new to having a LExus. Just sold my 06 G35C for an 07 IS350. Now i have the tuner bug and i can't decide which exhaust to get? I'm looking at the Megan cat back exhaust but i'm afraid that the better exhaust flow will create a loss in low end. My G35 had this issue when i put on cat back exhaust with hiflow cats. Do other drivers with catback exhaust have the same issue. What about axle back. I doubt there are any gains, just a change in sound. Which axle back are people preferring to get. I definitely want it to be louder than stock.
Thanks
Thanks
One more time - JoeZ! You can avoid the mix 'n match of midpipe + exhaust and get a quality system that has been proven.
Other full cat-back systems are Invidia, Megan, and Borla.
Other full cat-back systems are Invidia, Megan, and Borla.
I bought a used Tanabe for $400.
It adds 7 hp. (as will any other axle-back if you want a louder one)
A full exhaust will add 10-12 hp (depending how illegal you want it to be, either technically illegal or glaringly obviously illegal) and cost $1400 or so.
That was pretty easy math for me, gains wise.
Plus I -enjoy- a quieter exhaust on the lexus, given how loud my last car was.
It adds 7 hp. (as will any other axle-back if you want a louder one)
A full exhaust will add 10-12 hp (depending how illegal you want it to be, either technically illegal or glaringly obviously illegal) and cost $1400 or so.
That was pretty easy math for me, gains wise.
Plus I -enjoy- a quieter exhaust on the lexus, given how loud my last car was.
Thread Starter
Driver
Joined: Jul 2009
Posts: 135
Likes: 1
From: CA
I'm rocking HKS exhaust with Invidia mids. Got it all on here from reps for about 900. Joes is to much money even with the gains. I'm sorry but exhaust doesn't add noticeable HP. You only notice the sound! Thats why i cant see spending so much for an exhaust. The IS is too quiet for me.
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I'm rocking HKS exhaust with Invidia mids. Got it all on here from reps for about 900. Joes is to much money even with the gains. I'm sorry but exhaust doesn't add noticeable HP. You only notice the sound! Thats why i cant see spending so much for an exhaust. The IS is too quiet for me.
Your not going to notice anything no matter what exhaust you get, JoeZ included so just get an axle back and save the cash... plus there's many more options to choose from.
Lead Lap
Joined: Jan 2008
Posts: 509
Likes: 0
From: Toronto, Ontario, Canada
do u have the hipower? i'm kinda stuck between that and the megan mid...does anyone think it'll be too loud with hipower (silenced) and megan mid? i kinda wanna keep my secondary cats...is this possible with the megan?
Thread Starter
Driver
Joined: Jul 2009
Posts: 135
Likes: 1
From: CA
I want my car to be noticeably louder. My previous car was a G35 and i personally like hearing the engine/exhaust.
Whatever floats your boat.
Don't get exhaust if you are worried about being too loud.
Lexus Fanatic
iTrader: (10)
Joined: Nov 2004
Posts: 13,441
Likes: 1,076
From: Under an IS F since 2008
Honestly, a FULL True Dual 2.25" Exhaust with X pipe (designed well), will give you that 10-12 rwhp gain in the IS350
Most of the axle backs on the market will give approx 5-7 rwhp gains...
Now, throw in an available aftermarket Mid Y pipe and you will see about another 2 rwhp gain..
Since deleting the secondary Cats free up about 1 hp each.
I Wish High Grade 304 Stainless Steel was cheaper, so we could deliver the product to you all for a few hundred dollars less.. But it’s not.
We thought about releasing the system in aluminized steel tubing, which is cheaper, but we do not want to sell the exhaust using lesser quality materials..
Just as a reference, we developed a similar system for the IS-F using 2.5" SS tubing and we actually achieved 22 rwhp gains. Being that it’s a V8, the gains are a whole lot better.
We hope to get another GB with Carson going real soon for the ISx50 systems.
Regards,
Joe Z
Thread Starter
Driver
Joined: Jul 2009
Posts: 135
Likes: 1
From: CA
I understand. I spent $1500 for exhaust for my G35. I had high flow cats full exhaust which came out to $2100 (with the two) and it only shaved off 2 to 3 tenths off my quarter mile time and increased my trap speed by 3 mph.
Now i realize that it is not worth it. I'm just doing what i can to save money.
Now i realize that it is not worth it. I'm just doing what i can to save money.