RJC Racing Downpipes
The 5″ DP and our 3″ are now available with the huge 1 5/8″ puck to control the new Precision CEA Gen 2 billet wheel turbos and that both pipes come with band clamps for an easy install.
5″ Downpipe
5″ downpipe, Not a misprint! we have developed a 5″ down pipe for the turbo Buicks that will fit with A/C. Nothing on the market even comes close to the performance of this massive work of art. This has an integrated waste gate just like the stock actuator only it is capable of controlling boost in high 8 second cars. This wastgate configuration will outflow most aftermarket external waste gates.
This all new pipe is different than the pipe we offered in the past. Redesigned to fit better and have less clearance issues. Yes it does come close to the inner fender well. Please call us for more details on this complete kit with flange with internal waste gate, down pipe and test pipe.
Massive 5 to 4 Inch Downpipe | Price; $850!
Note: Our 100% billet USA made Wastegate flanges (made here at RJC Racing) is an industry exclusive. no other Buick parts Distributor offers this. CNC machined from a solid billet piece of stainless steel. Quality is second to none. you wont be disappointed. Both our 3 and 5″ down pipe flanges are stainless.
3 Inch Downpipes
Utilizing 304 Stainless Steel 3″ OD mandrel bent tubing. This pipe has been specifically designed for use on 1986-1987 Buick V6 Turbo engines, when running Stock OEM, aftermarket Poston, Houston or T/A headers. This downpipe is currently the only downpipe on the market that was specifically designed to clear and match perfectly turbos that are equipped with the GTQ turbine wheel. Previous downpipes in the past have a lip that hangs over into the exhaust stream and causes extreme turbulence and back pressure issues, which would require the end user to grind and port the flange when running a GTQ equipped turbocharger. Not anymore!
Our downpipe was designed to be the highest flowing 3″ downpipe on the market, with very close attention to detail in fitment and quality. The pipe kit is available with a matching 3″ dump pipe with block off cap, or 3″ test pipe (just a straight though pipe with no cut out). If quality is important to you then you will be very impressed with this pipe. Industry leading 1.625″ puck designed to control the boost with even the new HPT and next Gen Precision turbos. Our flange is made from 304 SSt with slightly slotted mounting holes to fine tune your installation for a perfect fit every time. You wont find a better fitting higher quality down pipe.
100% made in the USA
The craftsmenship is simply awesome.
Please look closely at these
detailed pictures on the left.
