Commercially available exhaust systems are few and far between.  It's not that they don't exist, it's just that most vendors don't even know what is available for the all trac/gt-four.  We have listed for you part numbers, and some thoughts that might help you decide which is best for you.

If you have questions about making your own exhaust system, visit here: EXHAUST FAQ

Here's a Quick Wrap up of the most popular exhausts

3" Mendrel Race Systems (2nd Cat Back)

	Pipe	Muffler	Tip	Polished?	Silencer?	Resonator?
NUR Spec R $559	~75mm	160mm	114mm	Yes, Stainless Steel	Included	Small
HKS Hiper  $550	75mm	?	120mm	Ceramic Coated Steel	Optional	Large
APEX N1 $594	75mm	160mm	115mm	Yes, Stainless Steel	Optional	Small
Aussie $775	75mm	-	-	Coated Stainless Steel	Included	Small

Aussie Exhaust System

Aussie Exhaust has developed a high flowing and high quality system for us.  At this time, the system only fits ST185 however.  The system is stainless steel and high flowing.  This is probably the easiest exhaust system to get.  It's a bolt on affair.  Two muffler styles are offered.

Installed Pics:

Close up Pics:

Pricing available at www.935motorsports.com                                                     

 They are mendrel bend and TIG welded for durability.  The cost and wait involved with importing directly from japan is usually a problem.  These are 2nd cat back systems except for the NUR spec, rear section only.  On these Blitz systems they go by internal pipe diameter.  To get a full diameter figure add about 5mm.

 Click to see installed

NUR SPEC  

70mm Pipe 114mm Tip 160mm Muffler

Rear Section Only (Right Picture)

ST185          #MT2060    $334
ST205          #MT2090     39,800 yen

Universal       #MPP704    $255 Muffler

Universal       #MP2104    $ 50  Silencer

NUR SPEC "R"   

70mm Pipe 114mm Tip 160mm Muffler

Includes silencer, 2nd Cat Back

ST185         #MT3070     $599
ST205         #MT3080      59,800 yen

HKS Sport Exhaust System  (2nd Cat Back) 

This is the most commonly used exhaust, at least in North America.  It used to be rather expensive, but was the only bolt on available and in stock from most tuners.  It does have a long life span as many have found.  Some have complained of knocking sounds once installed.  This is probably due to the fact that it was made as a more universal exhaust than a direct fitting piece.  It features aluminized steel and mendrel bent piping.  It is also legal.

Part# LET-T05    ST165/ST185 Universal  

HKS Hi-Power Muffler 75mm Piping 120mm Tip

HKS "Race" System, incorporates the least amount of bends as possible.  Must be imported, but with Blitz selling at a higher price, this might be a good alternative.  Considered off road only usage.  Stainless steel muffler, with ceramic coated steel piping.  This system is also quiter than the rest.

ST185 PN# 3106-ST013     $590 (ST185 Installed Pic) 

ST205 PN# 3106-ST011

Universal PN #3106-EX007  $220 (universal muffler only)
Silencer #3306-RA071   $32 price

APEX N1 Race System  85mm Pipe 115mm Tip 160mm Muffler

APEX also uses the least amount of necessary bends as possible.  The entire system is rather expensive.  For those on a budget try the universal N1 Muffler which you can have installed at any exhaust shop.  The N1 system is known for it's rather loud appeal.  Features large diameter stainless steel piping.  It is an off road only type exhaust system.

ST185                        PN# 161-T009  US$594 (ST185 installed pic)
ST205                        PN# 161-T010  ¥61200

ST205  "GT SPEC"        PN# 171-T006

Universal Muffler Only   PN#156-A003  $235.95 Retail