downpipe

[dgreen]

Who's has most bang for buck? mostly stock 87 gn (has 42lb. inj. and tt chip)

 

[blackgn1]

TA Performance.

 

[dgreen]

lots of rear dif. stuff but n o downpipes. ?

 

[pacecarta]

taperformance.com
http://www.taperformance.com/products.asp?cat=281

 

[forcefed3.8's]

Or leave the stock one on and add a test pipe and a good exhaust.

 

[earlbrown]

Best bang for the buck on a stock car is to port the elbow and not spend any money. There's a lip in there to remove and a couple places to smooth.


no bucks, some bang.

 

[dgreen]

Thanks everyone!!! had car out today Did small burnout and saw 10.1 knock on scan master backed out , no parts laying in road so I figured ok........ New to this, what controls timing on these cars? I own a repair shop in MD. work on cars every day but not very familiar with these cars.

 

[buickGN3:16]

timing is burned into chip, controlled from ecu