Notices
Performance Forced induction, intakes, exhausts, torque converters, transmissions, etc.

Weird smell when driving agressively!!

Old Apr 7, 2025 | 01:27 PM
  #1  
3fiddywill's Avatar
3fiddywill
Thread Starter
2nd gear
 
Joined: Apr 2025
Posts: 2
Likes: 0
Default Weird smell when driving agressively!!

2008 Lexus is350 base rwd. Just bought the car when I do a 3/4 throttle or full throttle pull the cabin starts smelling nasty especially in the high rpm’s. Smell of rotten eggs and chemicals is how I can describe it. Drove the car 200 miles already seems to run fine besides that. no lights trans shifts a little hard
Reply
Old Apr 7, 2025 | 01:30 PM
  #2  
KennyFSU's Avatar
KennyFSU
Instructor
Liked
Loved
Community Favorite
 
Joined: Jan 2022
Posts: 1,076
Likes: 445
From: FL
Default

Sounds like you have an exhaust leak along with a bad cat.
Reply
Old Apr 7, 2025 | 01:33 PM
  #3  
3fiddywill's Avatar
3fiddywill
Thread Starter
2nd gear
 
Joined: Apr 2025
Posts: 2
Likes: 0
Default

Originally Posted by KennyFSU
Sounds like you have an exhaust leak along with a bad cat.
oh thank god thought it was burning oil. Would it be fine to run the car like this for a little as I intend to go catlsss and get an after market exhaust?
Reply
Old Apr 14, 2025 | 02:22 PM
  #4  
StockaF's Avatar
StockaF
Driver School Candidate
5 Year Member
 
Joined: Nov 2017
Posts: 15
Likes: 0
From: ca
Default

You gotta check the rear flaps in the trunk, theyre most likely gone. I just got my IS250 in january and had the exhaust smell coming into my cabin at 3700 rpm+. Changed both sides out and nothing ever since. Got both sides for like $28 on ebay
Reply
Old Apr 19, 2025 | 01:44 PM
  #5  
XTLnate's Avatar
XTLnate
1st Gear
 
Joined: Apr 2025
Posts: 1
Likes: 0
Default It the rear vents behind rear bumper you got to remove the bumper first

Originally Posted by 3fiddywill
2008 Lexus is350 base rwd. Just bought the car when I do a 3/4 throttle or full throttle pull the cabin starts smelling nasty especially in the high rpm’s. Smell of rotten eggs and chemicals is how I can describe it. Drove the car 200 miles already seems to run fine besides that. no lights trans shifts a little hard

Reply
Old Sep 26, 2025 | 04:47 PM
  #6  
NDIZZLE213's Avatar
NDIZZLE213
3rd Gear
10 Year Member
 
Joined: Oct 2012
Posts: 3
Likes: 0
From: CA
Default New ex

Originally Posted by 3fiddywill
2008 Lexus is350 base rwd. Just bought the car when I do a 3/4 throttle or full throttle pull the cabin starts smelling nasty especially in the high rpm’s. Smell of rotten eggs and chemicals is how I can describe it. Drove the car 200 miles already seems to run fine besides that. no lights trans shifts a little hard
I had the same issue with my 07 when I boost it up a hill or about to get into the highway.
apparently it’s a know issue. So the fix was a new/upgraded exhaust I put an Nvidia system on mine and the smell is no more! Definitely worth doing as I hated the smell especially when passengers are in the car with me
Reply
Old Sep 30, 2025 | 06:24 PM
  #7  
Yodog's Avatar
Yodog
Intermediate
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2015
Posts: 352
Likes: 26
From: California
Default

Originally Posted by NDIZZLE213
I had the same issue with my 07 when I boost it up a hill or about to get into the highway.
apparently it’s a know issue. So the fix was a new/upgraded exhaust I put an Nvidia system on mine and the smell is no more! Definitely worth doing as I hated the smell especially when passengers are in the car with me
did you replace the mid pipe section as well?
Reply
Old Nov 18, 2025 | 02:06 AM
  #8  
NDIZZLE213's Avatar
NDIZZLE213
3rd Gear
10 Year Member
 
Joined: Oct 2012
Posts: 3
Likes: 0
From: CA
Default

Originally Posted by Yodog
did you replace the mid pipe section as well?
yes full system
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

10 Lexus Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-1

8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

 Michael S. Palmer
story-2

10 Best Lexus Models No One Remembers

 Joe Kucinski
story-3

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-4

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-5

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-6

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-7

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-8

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-9

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Reesh510
GS - 4th Gen (2013-2020)
15
Jun 19, 2023 11:55 AM
Allannss
IS - 3rd Gen (2014-present)
2
May 11, 2023 12:28 PM
Klaus9
IS - 2nd Gen (2006-2013)
15
Apr 21, 2021 12:29 PM
Klaus9
IS - 3rd Gen (2014-present)
5
Apr 19, 2021 08:33 AM
richy350
IS - 2nd Gen (2006-2013)
6
Jun 10, 2020 09:34 AM


Thread Tools
Search this Thread

All times are GMT -7. The time now is 09:33 PM.

story-0
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-1
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-2
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-3
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-4
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-5
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-6
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-7
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-8
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-9
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE