Average power gain for a catback?
Lexus Champion
Joined: Nov 2001
Posts: 3,006
Likes: 1
From: New York (NY)
Originally Posted by blacksc400
So you are saying that when Carson Toyota cliams the SRT intake with race ECU will produce 30HP is not correct??? I am very curious since I am buying it for my GS4. well, 30 hp sounds unreal to me, I would think max 15 with exhaust combo. Someone advise??
Just think about it, a supercharger kit will give you a gain of 75hp (or so) to the wheels. You really honestly think an intake and exhaust will give you 30hp? I doubt it.
Pole Position
Joined: Oct 2004
Posts: 3,398
Likes: 15
From: Maryland
Originally Posted by rheiy
I've read in other posts that hp gains tend to be overstated with intakes. You do get an increase in mid and top end performance (how muck is anyone's guess) but on the downside, you will lose power off the line.
One of the best thing's about the SRT intake is that they reprogram the ECU as well. I couldn't STAND my slow-shifting, quick-to-overdrive transmission before the ECU upgrade. Now I get better highway response at part throttle. Unfortunately, I still get that quickshift-to-overdrive (probably only a 3.76 LSD cures that a bit), but with the revamped SRT ECU, it will downshift more quickly when that quick shift happens. Thank goodness.
Lexus transmissions are still not built for people like us. They're just not sporty at all, even with that damn ECU button on. Hardly makes a difference.
Many, MANY other car manufacturers produce sporty automatics...Lexus is not one.
I am considering the 3.76 LSD down the road, but I do like my 425-440 miles on a tank of gas when traveling mostly highway. At least the high-overdrive Lex transmission is good for that.
Originally Posted by rheiy
I've read in other posts that hp gains tend to be overstated with intakes. You do get an increase in mid and top end performance (how muck is anyone's guess) but on the downside, you will lose power off the line.
So just simple question for people already have SRT intake, do you feel the difference? does it sound nice? Do you feel it worth to drop 475.00 on??
I am going to buy it real soon!
I am going to buy it real soon!
Pole Position
Joined: Oct 2004
Posts: 3,398
Likes: 15
From: Maryland
Originally Posted by blacksc400
So just simple question for people already have SRT intake, do you feel the difference? does it sound nice? Do you feel it worth to drop 475.00 on??
I am going to buy it real soon!
I am going to buy it real soon!
But, in raw form, it's too loud. It needs a silencer box, or else your quiet Lexus will turn into a loud thundering machine. The box moves the roar to the last 65-75% of the throttle position. I still wish it was at like 90-95% throttle position 'til you heard it, but at 65-75%, it's not too bad.
Lexus Test Driver
Joined: Feb 2002
Posts: 1,106
Likes: 1
From: California
Originally Posted by KevinGS
...unless you get the torque converter too.
I am considering the 3.76 LSD down the road, but I do like my 425-440 miles on a tank of gas when traveling mostly highway. At least the high-overdrive Lex transmission is good for that.
I am considering the 3.76 LSD down the road, but I do like my 425-440 miles on a tank of gas when traveling mostly highway. At least the high-overdrive Lex transmission is good for that.
Pole Position
Joined: Oct 2004
Posts: 3,398
Likes: 15
From: Maryland
Originally Posted by rheiy
I'm hearing the 3.76lsd is getting hard to find. Both RMM and TM don't have any. You may have to go to the used market if and when you decide to get one.
It may never be an option I'd really consider.
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Lexus NX 350h: A Fuel-Sipping Secret Hot Hatch???
Michael S. Palmer
5 Best & 5 Worst Lexus Daily Drivers
Joe Kucinski
Top 5 Hottest Lexus & Toyotas in 2026 (Hardest To Buy)
Brett Foote
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks
Michael S. Palmer
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
Originally Posted by rheiy
I'm hearing the 3.76lsd is getting hard to find. Both RMM and TM don't have any. You may have to go to the used market if and when you decide to get one.
Lexus Test Driver
Joined: Feb 2002
Posts: 1,106
Likes: 1
From: California
Originally Posted by rominl
i talked to tm engineering this past weekend as well, and he told me that the part number is no longer available at toyota, so that's the deal
Glad I got mine when I did
Originally Posted by rheiy
Can't figure why toyota would stop making the part since it can be used in the GS and supra.
Glad I got mine when I did
Glad I got mine when I did
Lexus Fanatic
Joined: Dec 2003
Posts: 14,523
Likes: 3
From: new jersey
Originally Posted by rominl
maybe when it's long enough (keep in mind it's ONLY used in the 95 to 96 supra auto), which was 10 yrs ago, so...