A properly designed manifold makes serious power. We fabricate equal-length tubular and merge collector designs for naturally aspirated and turbocharged builds.
Balanced runner lengths for cleaner exhaust pulses and proper power.
304, 321 stainless and Inconel options for turbo applications.
Aerospace-grade welds inside and out for strength and flow.
T3, T4, V-band and twin-scroll layouts available.
What's included
Every job at PI Motorsport starts with diagnostics and ends with sign-off. No shortcuts, no generic files, no compromises on finish.
The manifold is the first thing the exhaust gas touches. A poorly designed one chokes the engine before any of the downstream pipework has a chance to work. A properly designed one extracts gas cleanly and lets the engine breathe the way it was meant to.
For turbocharged builds, manifold design is even more critical. Pulse separation, runner length and collector geometry all affect spool, peak power and exhaust gas temperature.
We work in 304 and 321 stainless for naturally aspirated and most turbo builds. For high-EGT applications, including high-boost setups and rotaries, Inconel is the right material and we have it in stock.
Every weld is TIG, back-purged with argon inside the pipe. That gives the smoothest internal finish, the best flow and the longest service life.
FAQ
Yes, custom turbo and NA manifolds are a core part of what we do for swap builds.
Send your reg and what you're looking for, we'll come back with a proper quote.
