What is the diameter of the midpipe and the diameter of the muffler tip?

Doesn’t matter. Nothing fits correctly anyways.

Does this fit my Altezza RS200?

No it only fits the 01-05 is300 unfortunately

Is this fits 2002 Lexus is300 sportcross wagon?

I'm not sure, but all you have to do is put your cars information in on that exhaust and it'll tell you if it fits or not there's a filter option in the settings of Amazon where you can put your exact vehicle in and search for parts and it will only pull up the ones that fit your vehicle you can look at the bottom of the listing and it'll say this fits your vehicle or this does not fit your vehicle or it will also ask you to enter more information to double-check it's raspy sounding I already took mine off 🤷

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DNA MOTORING CBE-IS300-BT Stainless Steel Cat Back Exhaust System [Compatible with 01-05 Toyota IS300 Altezza XE10]

Product ID: 28329011

Details

Brand
DNA MOTORING
Configuration
2001-2005 XE10
Item Weight
19 pounds
Material
Stainless
Vehicle Service Type
2001-2005 XE10

🎵Aggressive Deep & Smooth Exhaust Tone

🔧T-304 Stainless Steel Durability

🏎️15-25 HP Instant Power Boost

$1308.37

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Description

🔥 Unleash Your IS300’s Roar with Precision Power!

OPTIMIZED FLOW DESIGN - 4-inch muffler with 2.25-inch piping and double-walled rolled tip reduces backpressure for maximum engine efficiency.
SONIC SIGNATURE UPGRADE - Experience an aggressive yet refined exhaust note that commands attention without overwhelming your daily drive.
POWER TORQUE AMPLIFIED - Dyno-proven to deliver an immediate 15-25 horsepower and enhanced low-end torque—feel the difference on every drive.
PRECISION ENGINEERED FIT - Tailored for 2001-2005 Toyota IS300 Altezza XE10 for seamless installation and perfect compatibility.
RACE GRADE STAINLESS STEEL - Crafted from premium T-304 stainless steel with CNC mandrel bends and TIG welded flanges for unmatched strength and corrosion resistance.

The DNA MOTORING CBE-IS300-BT Cat Back Exhaust System is a high-performance upgrade designed specifically for 2001-2005 Toyota IS300 Altezza XE10 models. Constructed from durable T-304 stainless steel with CNC mandrel bends and TIG welded flanges, it ensures longevity and resistance to corrosion. Dyno-tested to boost horsepower by 15-25 and improve low-end torque, this system also delivers a deep, aggressive exhaust tone while optimizing exhaust flow for enhanced engine efficiency.

Specifications

ASIN	B00TY39THE
Best Sellers Rank	#1,028,663 in Automotive ( See Top 100 in Automotive ) #268 in Automotive Replacement Exhaust Cat-Back Systems
Brand Name	DNA MOTORING
Compatible with Vehicle Type	2001-2005 Toyota IS300 Altezza XE10
Configuration	2001-2005 Toyota IS300 Altezza XE10
Customer Reviews	4.0 4.0 out of 5 stars (55)
Global Trade Identification Number	00842765106524
Included Components	1 x Catback Exhaust System
Item Type Name	DNA Motoring CBEIS300BT Stainless Steel Catback Exhaust System
Item Weight	19 pounds
Manufacturer	DNA Motoring
Manufacturer Part Number	CBE-IS300-BT
Manufacturer Warranty Description	Please contact the seller directly for warranty information for this product.
Material Type	Stainless Steel
Model Number	CBE-IS300-BT
Shape	Round
UPC	842765106524

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