SRT Intake or exhaust first?
Thread Starter
Pole Position
Joined: Aug 2004
Posts: 322
Likes: 0
From: Missouri
SRT Intake or exhaust first?
I am debating whether to get the Apexi WS exhaust or Borla exhaust first ....or the SRT Intake first.....What do you guys think?
Which is more restrictive? Stock air box or stock exhaust?
Also... I have heard that the Check Engine light comes on sometimes after the SRT install? Is this normal or poor installation?
Which is more restrictive? Stock air box or stock exhaust?
Also... I have heard that the Check Engine light comes on sometimes after the SRT install? Is this normal or poor installation?
Trending Topics
for power gain i'd say go with the SRT intake.... for what others see and hear i'd go for exhaust.. but keep in mind that the SRT intake is pretty damn loud too lol and whistles at girls for you haha 
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation
Joe Kucinski
Lexus LC500 Convertible Auction: A Preview of Rising Values?
Brett Foote
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler
Michael S. Palmer
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)
Joe Kucinski
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!
Brett Foote
Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)
Michael S. Palmer
Top 10 Lexus & Toyota Models of the 1990s RANKED!
Joe Kucinski
10 Great Toyotas That Could Have Been Lexus Models
Joe Kucinski
I am putting both on right now, but i am doing the SRT right now to see the difference and then will install the exhaust, I have the exhaust in my garage and T.L.W. is sending me the srt!! 
Just can't wait!~
Just can't wait!~
Thread Starter
Pole Position
Joined: Aug 2004
Posts: 322
Likes: 0
From: Missouri
which exhaust...
ok....so the majority of the members are saying go with the exhaust first.... Since I have not seen either of the exhaust systems in person....I am kind of stuck on which one to get? Borla or Apexi... I have the Apexi GT-Spec on my Supra and I like it ... good quality and no rusting... but I do want to trade it for the HKS Ti (4" internal diameter).....but anyway back on subject.....The Borla is more stock looking and has a super warranty...
So what are pros and cons?
ie... sound, ground clearence, apperance...
Let me know Borla or Apexi??
So what are pros and cons?
ie... sound, ground clearence, apperance...
Let me know Borla or Apexi??
Lexus Champion
Joined: Feb 2001
Posts: 3,124
Likes: 32
From: Texas
Keep in mind that there are multiple components in the exhaust system starting with the manifolds/headers... see the header thread for more (much) info.
After the manifolds you have the catalysts which on the GS400 are very good and not worth messing with. After that you have the Y pipe, the mid pipe with dual resonators and the dual tailpipe mufflers.
Most exhaust "systems" are nothing more than tailpipe mufflers with tips. Most are straight through design. A good stainless muffler will outlast your ownership of the car. You can save a considerable amount of money just replacing the mufflers. BTW, see my last post in the header thread about muffler availability.
After the manifolds you have the catalysts which on the GS400 are very good and not worth messing with. After that you have the Y pipe, the mid pipe with dual resonators and the dual tailpipe mufflers.
Most exhaust "systems" are nothing more than tailpipe mufflers with tips. Most are straight through design. A good stainless muffler will outlast your ownership of the car. You can save a considerable amount of money just replacing the mufflers. BTW, see my last post in the header thread about muffler availability.
Originally Posted by SUPRAboy80
ok....so the majority of the members are saying go with the exhaust first.... Since I have not seen either of the exhaust systems in person....I am kind of stuck on which one to get? Borla or Apexi... I have the Apexi GT-Spec on my Supra and I like it ... good quality and no rusting... but I do want to trade it for the HKS Ti (4" internal diameter).....but anyway back on subject.....The Borla is more stock looking and has a super warranty...
So what are pros and cons?
ie... sound, ground clearence, apperance...
Let me know Borla or Apexi??
So what are pros and cons?
ie... sound, ground clearence, apperance...
Let me know Borla or Apexi??
Lexus Champion
Joined: Feb 2001
Posts: 3,124
Likes: 32
From: Texas
Originally Posted by rominl
borla is only muffler back, so it's quieter. the apexi is cat back with no resonator so it's quite a bit louder. i have the apexi and i love it, so i might be biased
I searched for the apexi for the GS400 and found no pictures only verbiage saying that it was cat back. BUT, I did find where the SAME part number works on both the GS300 and 400. That is not possible on a true cat back system. Now, from the center resonator outlet flange back the GS300 and 400 are duals with resonators. I believe this is what is being CLAIMED as cat back when in reality it is only resonator back. There are 3 resonators, the single center and the duals. It looks like the apexi includes a rear Y pipe and duals to the mufflers. A true cat back would include from the catalysts which would require the front Y pipe assembly. Take a look at the diagrams I posted in the Header thread and tell me what came with your system.